filter
['filtə]
n.过滤器, 滤色镜, 滤光器
v.过滤, 渗透
例句与用法:
You need to filter the drinking water.
你需要把饮用水过滤。
The teacher gave each of us a piece of filter paper before doing the experiment.
做试验前,老师给我们每个人发了一张滤纸。
The sunlight filtered through the curtains.
阳光透过窗帘映了进来。
词形变化:
形容词: filterless | 名词: filterer | 动词过去式: filtered | 动词过去分词: filtered | 动词现在分词: filtering | 动词第三人称单数: filters |
n.[C]
1. 滤器; 多孔过滤材料
This is a coffee filter.
这是咖啡过滤器。
2. 滤光器; 滤波器; 滤光镜
3. 【口】有滤嘴的香烟
vt.
1. 过滤
The water was filtered through charcoal.
这水是通过炭来过滤的。
2. 滤除[(+off/out)]
3. 使漏过; 使漏出
vi.
1. 滤出
2. 透过, 渗透; (消息等)走漏; (人群等)慢慢移动[Q]
News of the defeat filtered through.
失败的消息走漏了出来。
Sunlight filtered through the leaves.
阳光透过了树叶。
短语词组:
filter out
1. 滤除
We must filter out the dirt.
我们必须滤除尘垢。
filter
名词复数:filters
过去式:filtered
过去分词:filtered
现在进行时:filtering
词形变化:
形容词: filterless | 名词: filterer | 动词过去式: filtered | 动词过去分词: filtered | 动词现在分词: filtering | 动词第三人称单数: filters |
词义辨析:
同义:
vt.过滤, 渗透
strain
percolate
screen
sift
refine
purify
cleanse
drain
separate
同义参见:
ooze1
filter[filtə]n.1.■(过)滤器,滤清器;滤纸2.■适于过滤用的多孔物质(如砂、炭、毡、纸等)3.■(香烟头上的)过滤嘴;[口语]有过滤嘴的香烟4.■【物理学】5.■滤波器6.■滤光器;滤光镜,滤光片7.■[英国英语](在十字路口亮红灯指示主要车流停止前行时)指示分流车道上的车辆行驶的绿色箭头灯;限阈通行vt.1.■过滤(液体或气体):You need to filter the drinking water.你需要把饮用水过滤。2.■用过滤法除去(固体粒子或杂质等),滤出,滤清(常与off或out连用):Filter out all the dirt before using the water.在用这水之前先将其中所有污物滤去。3.■起滤器作用:Charcoal filters many gases.炭被用作许多气体的滤器。vi.1.■漏过,滤过,透过:Sunlight filtered through the window.阳光从窗户透了进来。2.■渗,渗入:Water filters through sandy soil and into the well.水滤过沙土流入井内。3.■(消息等)走漏,泄露,慢慢传开:The news filtered through the town.这消息慢慢传遍全球。4.■[英国英语](分流车道上的车辆)根据绿色箭头灯所示行驶,限阈通行adj.1.■[口语]过滤嘴的
filterfilter[ˈfiltə]n.1.■过滤器, 滤纸; 过滤料(如砂、炭、纸、布等)2.■【物】滤光器; 滤色镜;【无】滤波器3.■滤管, 滤池4.■滤声器5.■【数】滤子6.■射线过滤板7.■【计】筛选程序
词性变化filter[ˈfiltə]vt.1.■过滤2.■用过滤法除去Filter out all the dirt before using the water.在用水以前先将其中不清洁的东西过滤掉。vi.1.■滤过2.■[喻]透过; 渗入; (消息)走漏, 慢慢传开3.■(车辆在十字路口) 进入另一车辆行列The news filtered through.消息走漏了。
继承用法filter-aidn.1.■助滤剂filter-papern.1.■(定量)滤纸filter-pressn.1.■压(力过)滤机filter-sterilizern.1.■过滤消毒器filterstripsn.1.■滤条filter-tankn.1.■过滤槽[桶]filter-tippedadj.1.■有过滤嘴的filterern.
noun
- a porous device for removing impurities or solid particles from a liquid or gas passed through it
过滤器
an oil filter.
滤油器。
■short for filter tip
filter tip 的简称
[as modifier]a cheap filter cigarette.
廉价的过滤嘴香烟。
■a screen, plate, or layer of a substance which absorbs light or other radiation or selectively absorbs some of its components
滤光(或其他辐射)屏(或板、层)
filters can be used in photography to reduce haze.
摄影中滤光镜可用来提高清晰度。
■a device for suppressing electrical or sound waves of frequencies not required
滤波器
■(Brit)an arrangement whereby vehicles may turn left (also right) while other traffic waiting to go straight ahead or turn right (also left) is stopped by a red light
(英)(车辆)分流
[as modifier]a filter lane.
分流车道。
■a traffic light signalling such an arrangement, typically one partly blacked out to form an arrow
(尤指箭头状的)分流灯
■(Computing)a piece of software that processes text, for example to remove unwanted spaces or to format it for use in another application
(计算机)筛选程序
- [with obj.](常作 be filtered)pass (a liquid, gas, light, or sound) through a device to remove unwanted material
过滤(液体,气体,光,声音)
the eye filters out ultraviolet radiation.
眼睛可滤出紫外线。
you'll be put through to a secretary whose job it is to filter calls.
会把你的电话接到一个秘书那儿,她的工作就是筛选来电。
■(Computing)process or treat with a filter
(计算机)过滤,筛选
■[no obj., with adverbial of direction]move slowly or in small quantities or numbers through something or in a specified direction
缓缓流过;透过;渗过
people filtered out of the concert during the last set.
终曲声中,人们缓缓走出了音乐厅。
■(of light or sound) enter a place slowly or in small quantities
(光,声)滤进来
sunlight filtered in through the thin curtains.
阳光透过薄薄的窗帘射进来。
■[no obj., with adverbial](of information) gradually become known
(消息)渐为人知,渐渐传开
the news began to filter in from the hospital.
消息开始渐渐从医院传进来了。
■[no obj., with adverbial of direction](Brit.)(of traffic) be allowed to pass to the left or right at a junction while traffic going straight ahead is halted
(英)(车辆)在路口获准转弯
- late Middle English (denoting a piece of felt): from French filtre, from medieval Latin filtrum 'felt used as a filter', of West Germanic origin and related to felt
filter
名词 filter:
device that removes something from whatever passes through it
an electrical device that alters the frequency spectrum of signals passing through it
动词 filter:
remove by passing through a filter
同义词:filtrate, strain, separate out, filter out
pass through
同义词:percolate, sink in, permeate
run or flow slowly, as in drops or in an unsteady stream
filter
■ACC1-ACC2 adjust the filter pass band width.
ACC2调整过滤器通路波段的贷款。
■CSV filter cannot open input file - please report.
CSV过滤器不能打开输入文件-请报告。
■Elecard Sink Filter, Elecard Image Scaler.
elecard水槽过滤器, elecard的形象,定标。
■FFU have primary and hepa two pole filter net.
FFU设有初、高效两极过滤网。
■The TML series syrup filter is used to filter syrup.
TML系列糖浆过滤器用来过滤糖浆。
■Unit test for the URI filter plugin framework.
URI过滤器插件框架的单元测试。
■The Order Date field is added to the filter.
“订单日期”字段将添加到筛选器中。
■A filter for abstract pathnames.
一个抽象路径名的过滤器。
■A filter was being installed in the kitchen.
一只过滤器被安装在了厨房。
■Shanghai SAAR Filter Equipment Co., Ltd.
上海萨尔过滤设备有限公司。
■Smoke cigarettes without filter tips.
不要吸没有滤嘴的香烟。
■No, thanks. I don't like anything without a filter.
不,谢谢。我不抽没有过滤嘴的。
■No, thanks. I do not like anything without a filter.
不,谢谢。我有抽没有过滤嘴的。
■Sturdy, cheap water filter for Nepal wins World Bank Prize.
为尼泊尔设计的耐用,便宜滤水器赢得世界银行奖。
■Host LUN filter Entry deleted successfully!
主机LUN过滤器项目删除成功!
■The Main Mode filter is pending deletion.
主要模式筛选器正搁置删除。
■He retrieved the motel key hidden in the carburetor air filter.
他拿回了藏在气化器里的汽车旅馆的钥匙。
■Also used as air filter in cars and tractors.
以及汽车拖拉机上用作空气滤清器。
■High Quality Tap Water Needs No Filter!
优质自来水,不必多滤!
■The transport filter is pending deletion.
传输筛选器正搁置删除。
■You can also filter to focus on specific areas.
你也可以设置过滤器来只关注一些特定的区域。
■Which Digital filter did you use?
你使用了什么数字滤波器?
■You must be over 18 to turn off the family filter.
你必须在18以上去关闭家庭过滤器。
■Do you want to turn on the phishing filter?
你愿意打开反网络钓鱼过滤功能么?
■You need to filter the drinking water.
你需要把饮用水过滤。
■Use sunglasses with a UV filter.
佩戴带有UV滤光功能的太阳镜。
■The teacher gave each of us a piece of filter paper before doing the experiment.
做试验前,老师给我们每个人发了一张滤纸。
■Lead and cadmium in optical and filter glass.
光学和过滤玻璃中的铅和镉。
■Key words active Filter, current transmitter.
关键词有源滤波器,电流传输器.
■A filter whose transfer function is matched with the frequency spectrum function of input signal.
其传递函数与输入信号的频谱函数相匹配的一种滤波器。
■Deletes a filter for an accepted peer server.
删除一个已接受的对等服务器的筛选器。
■Click a cell in the list that you want to filter.
单击要筛选的列表中的一个单元格。
■Carbon filter except foul smell;acid and bacterium.
卡式活性炭过滤器,净油除味,脱酸,杀菌。
■A category for the ad on which the page can filter.
可作为页筛选依据的广告类别。
■Both join filter and logical record relationship.
同时为联接筛选器和逻辑记录关系。
■The beak is a highly efficient filter.
喙是一个高效的过滤器。
■In X-ray fluorescence, pieces of the filter are used directly.
在X射线荧光法中,可直接使用滤纸。
■In the Common Data View Tasks list, click Filter.
在“常见数据视图任务”列表中,单击“筛选”。
■The crankcase has to drain before you put on the new filter.
在安放新过滤器之前,曲轴箱必须滴干。
■Adds a packet filter to a specified interface.
在指定接口上添加一个数据包筛选器。
■Can't find a capture filter in analog tuner segment.
在模拟调谐器段无法找到字幕筛选器。
■The filter cleans the fuel before it enters the engine.
在燃料进入发动机之前,过滤器先把它过滤。
■Filter out all the dirt before using the water.
在用水以前先将其中不清洁的东西过滤掉。
■Filter equation design in wine making processes.
在葡萄酒酿造过程中的过滤器等式设计。
■The chemical is circulated through Supply Filter for the set time.
在规定时间试剂通过供给过滤器循环。
■AEC is implemented by adaptive filter.
声回波抵消通常采用由自适应滤波器组成的声回波抵消器来实现。
■Foreign influence began to filter into the country.
外国的影响开始渗透进我国。
■Tiantai South-West Filter Cloth Factory.
天台县西南滤布厂。
■If you do not want a filter, select All Tasks.
如果不需要筛选器,请选择“所有任务”。
■Clause to filter the results of a prediction query.
子句筛选预测查询的结果。
filter out
1. 滤除
We must filter out the dirt.
我们必须滤除尘垢。
习惯用语filter out1.■渗漏; 走[泄]漏消息等filter through1.■渗漏; 走[泄]漏消息等特殊用法absorbent filter1.■吸收性滤器, 吸水滤纸accentuation filter1.■预加重滤波器acid filter1.■滤酸器acoustic wave filter1.■消声器acoustical filter1.■声滤波器, 滤声器active filter1.■有源滤波器adaptive electric filter1.■自适应电气滤波器additive colour filter1.■附加滤色器adsorbent filter1.■吸附剂过滤器aerated trickling filter1.■曝气滴滤池aerial coupling filter1.■天线耦合滤波器aerial dust filter1.■空气滤尘器air suction filter1.■空气吸滤机, 抽气过滤机all-pass filter1.■全通[移相, 相位]滤波器all-wave filter1.■全波滤波器alternating current supply filter1.■交流电源滤波器ambient light filter1.■中灰滤光片, 保护滤光片(白天传送电视时用以增强可视度)amplitude filter1.■振幅滤波器analog filter1.■模拟(信息)滤波器analyzing filter1.■分光滤色片antihunt filter1.■防振滤波器aperture filter1.■孔径滤波器audio-rejector filter1.■伴音抑制器backwashing filter1.■反洗滤池bacterial filter1.■细菌滤器bag filter1.■袋式滤器, 囊式集[滤]尘器; 装袋[包]机balloon filter1.■(素烧)圆滤瓶band filter1.■带通滤波器band eliminator filter1.■带除滤波器bandpass crystal filter1.■带通晶体滤波器band-rejection filter1.■带阻滤波器band stop filter1.■带阻滤波器band suppression filter1.■带阻滤波器barrier filter1.■阻挡[吸收]滤片; 二次滤片basic filter1.■标准滤波器[滤光片]batch filter1.■间歇[分批]式过滤器bilithic filter1.■双片滤波器biological sand filter1.■生物砂滤池blocking filter1.■闭塞滤波器; 阻挡滤光片; 间歇滤波器boundary wave-vector filter1.■边界波矢量滤波器branching filter1.■分路滤波器broad band filter1.■宽(频)带滤波器brute force filter1.■平滑(倒L形)滤波器by-pass filter1.■旁路滤波器cage bag filter1.■栅式布袋过滤器can filter1.■注水器candle filter1.■烛形[管式]过滤器, 过滤烛管canvas filter1.■帆布过滤器capacitance-resistance filter1.■阻容滤波器capacity-input filter1.■电容输入式滤波器carbon monoxide filter1.■一氧化碳滤毒罐carrier transfer filter1.■载波传输滤波器catalytic filter1.■催化过滤器cation exchange filter1.■阳离子交换过滤器cellular filter1.■蜂窝状滤器centrifugal filter1.■离心过滤器[机]channel filter1.■信道滤波器charcoal filter1.■(木)炭(过)滤器chimney filter1.■滤管chirp filter1.■线性调频脉冲滤波器choke filter1.■(整流用)展平滤波器; 扼流圈滤波器; 低通滤波器clarifying filter1.■滤净器click filter1.■(电键)喀呖声(消除)滤波器closed sand filter1.■密闭砂滤器cloth filter1.■布滤器, 滤布clutter filter1.■【电磁】杂波滤波器coalescent filter1.■(燃油水分)凝聚过滤器coarse mesh filter1.■粗(网)滤(清)器coaxial filter1.■同轴式滤波器code filter1.■电码滤波器coil filter1.■(盘)旋管过滤器cold filter1.■常温(油)滤器collodion filter1.■火棉胶滤器colour balance filter1.■彩色平衡滤光片colour correction filter1.■彩色校正滤色镜[滤光片]colour encoding filter1.■彩色编码滤波器colour gelatine filter1.■彩色明胶滤色镜colour separation filter1.■分光滤色片colour temperature conversion filter1.■色温交换滤光器comb filter1.■梳状滤波器complementary filter1.■互补滤波器composite filter1.■复合[混成]滤波器condenser input filter1.■电容输入滤波器contact biological filter1.■接触生物滤池, 生物转盘contrast filter1.■强反差滤光镜controlled filter1.■控制过滤conversion filter1.■转换滤光片correction filter1.■校正滤波器[滤光片]coupling filter1.■耦合滤波器cross-over filter1.■交迭滤波器crosstalk suppression filter1.■串音抑制滤波器crystal filter1.■(压电)晶体滤波器cuno(oil) filter1.■叠片转动式滤油器, 篦式油滤器decoupling filter1.■去耦滤波器deep-bed filter1.■深床滤池demodulator filter1.■解调[检波]滤波器dichroic filter1.■二向色滤光片, 分色镜dielectric multilayer filter1.■多层介质滤光片differential filter1.■差接滤波器diffusing filter1.■扩散滤波器[滤光片]directional (separation) filter1.■分向滤波器disc filter1.■检验牛乳中杂质用的过滤(棉)纸片discontinuous filter1.■不连续[脉冲]滤波器distributed constant filter1.■分布常数滤波器dividing filter1.■分路滤波器double layer filter1.■双层滤池double type filter1.■重合型滤波器double-section filter1.■二节滤波器double-tuned filter1.■双调谐滤波器dross filter1.■滤渣芯片, 滤网dry filter1.■干(燥)滤器, 硅胶滤器dual filter1.■对偶滤波器dual-media filter1.■双层(滤料)滤池duplex filter1.■双重过滤器effect filter1.■【光】效应滤色[滤光]器effluent filter1.■污水过滤器Eimco belt filter1.■旋转带式真空吸滤机electrical filter1.■滤波器electrostatic mass filter1.■静电滤质器electrostatic oil filter1.■静电油过滤器elimination filter1.■滤去器entropy filter1.■滤熵器exhaust gas filter1.■排气过滤器exponential filter1.■指数滤波器fabric filter1.■织物过滤器far infrared transmission filter1.■远红外透射滤片feed filter1.■给水滤器feedback filter1.■反馈滤波器fiber filter1.■纤维过滤器final filter1.■终滤器fine filter1.■细滤清器finite memory filter1.■有限存储滤波器fluid filter1.■流体过滤器fly ash filter1.■飞灰过滤器frame filter1.■板框式压滤机frame difference filter1.■帧差滤波器frequency filter1.■频率滤波器fresh water filter1.■淡水滤器fringed filter1.■条纹滤色片full section filter1.■整节滤波器gauze filter1.■网状滤器gelatine filter1.■胶质滤光片germ-tight filter1.■细菌过滤器, 滤菌器bacteriological filter1.■细菌过滤器, 滤菌器glass filter1.■滤光镜, 滤光器glass-fiber filter1.■玻璃纤维滤器glue filter1.■(胶汤)滤胶器graded filter1.■回水过滤器graded neutral density filter1.■分级中性滤光片gravity -type filter1.■重力自流式过滤器grease filter1.■润滑脂过滤器grey glass filter1.■灰色玻璃片group filter1.■群滤波器harmonic filter1.■谐波滤波器hay filter1.■(污水)隔油滤网haze filter1.■消雾滤光器heatproof filter1.■耐热滤光镜heat(-reducing) filter1.■滤热片heavy liquor filter1.■浓糖浆过滤器heterodyne filter1.■外差滤波器high pass filter1.■高通滤波器high-order mode filter1.■高次模滤除器high-rate trickling filter1.■高负荷生物滤池high-stop filter1.■高截止滤波器holographic filter1.■全息滤波器homomorphic filter1.■同态滤波器hose suction filter1.■软管式吸滤器hot saccharate filter1.■热蔗糖盐滤器household water filter1.■生活用水过滤器hum filter1.■交流声[哼声]滤除器; 平滑滤波器hydraulic filter1.■水力[液力]滤器immersion filter1.■浸液过滤器, 油箱用滤油器inductance filter1.■电感(性)滤波器inductance-capacitance filter1.■(电)感(电)容滤波器infinite memory filter1.■无限存储过滤器infinite rejection filter1.■无限衰减滤波器infrared filter1.■红外滤光片inlet filter1.■进口[吸油管]滤油器intake filter1.■进口[吸油管]滤油器inside-out filter1.■外流式过滤器integrating filter1.■积分滤波器interference filter1.■干扰滤波器[滤光片]interference polarizing filter1.■干涉偏振滤光器intermittent filter1.■间歇过滤器inverse feedback filter1.■倒反馈滤波器iterative filter1.■累接滤波器junction filter1.■高低通滤波器组合, 结型滤波器key filter1.■键噪滤波器, 键路火花消除器key thump filter1.■电键击声消除器kieselguhr filter1.■硅藻土滤器knit-mesh filter1.■网状滤器ladder -type filter1.■梯式[多节]滤波器lagging filter1.■滞后滤波器lattice -type filter1.■Х型[桥式, 格子形]滤波器light filter1.■滤光[色]器; 滤光[色]镜; 滤光板[玻璃]light correction filter1.■灯光校正滤光片light liquor filter1.■稀糖汁滤器light-balancing filter1.■中性滤波片, 光衡消滤色器lime mud filter1.■石灰渣滤器, 石灰浆滤器linear filter1.■线性滤波器, 线性过滤器linear phase filter1.■线性相位滤波器linear pulsed filter1.■线性脉冲滤波器linear-slope delay filter1.■线性斜率延迟滤波器linear-time invariant filter1.■线性非时变滤波器liquid crystal filter1.■液晶滤波器loaded filter1.■反滤层local oscillator filter1.■本(机)振(荡器)滤波器long-length filter1.■长波滤波片loop filter1.■环路滤波器lossless filter1.■无耗滤波器lowcut filter1.■低阻滤器low-rate filter1.■低速过滤池low-rate trickling filter1.■低负荷生物滤池lubrication filter1.■润滑滤清器lumped-constant filter1.■集总常数滤波器magnetic filter1.■磁性过滤器magneto striction filter1.■磁致伸缩滤波器mains filter1.■电源滤波器mash filter1.■糖化醪滤器matched filter1.■匹配滤波器membrane filter1.■薄膜滤器memory filter1.■记忆滤波器mesh gauze filter1.■筛网过滤器metachromatic filter1.■变色滤光器metal -ceramic filter1.■金属-陶瓷过滤器metal cloth filter1.■金属网过滤器microfroc filter1.■精密过滤机(微孔毡呢滤布)mid-series derived filter1.■半串联推演式滤波器mid-shunt derived filter1.■半串联推演式滤波器millipore filter1.■微孔滤器, 超滤器miscella filter1.■油水混合物过滤器mixing filter1.■混频滤波器mode filter1.■波型[振荡型]滤波器molecular filter1.■分子过滤器monochromatic filter1.■单色滤光片[器]most effective filter1.■高效滤毒罐moving bed filter1.■移动床过滤器mud filter1.■滤泥器, 收泥器multilayer filter1.■多层滤光片multilayer interference filter1.■多层干涉滤光片multiple filter1.■多节[多重]滤波器narrow-band pass filter1.■窄带通滤光片narrow-cut filter1.■窄带(截止)滤波器negative feedback filter1.■负反馈滤波器neighbo(u)rhood filter1.■邻域滤子net-type filter1.■网式滤清器network filter1.■网络滤波器neutral filter1.■中性滤光器neutral colo(u)r filter1.■中性滤光片[滤色镜]neutral density filter1.■中性[中灰]滤光片neutral step filter1.■中性阶梯减光板neutral wedge filter1.■中性光劈式滤光片nitrocellulose filter1.■硝化纤维素滤器noise filter1.■噪声[静噪]滤波器noise whitening filter1.■噪声白化滤波器nonlinear filter1.■非线性滤波器notch filter1.■陷波滤波器, 频率特性曲线下凹的滤波器, 阶式滤波器nozzle filter1.■喷丝头滤器null filter1.■零值滤波器nutsch filter1.■上下真空滤器, (真空)吸滤器octave filter1.■倍频程滤波器(分析复合声和噪声频谱能的含量)oil mist filter1.■油雾滤清器optical light filter1.■光学滤光[波]器; 滤色镜optical interference filter1.■光学干涉滤光片optical low-pass filter1.■低通滤光器, 光学低通滤色器optical spatial frequency filter1.■光学空间频率滤色器optical stripe filter1.■条状滤光片orange-transmitting filter1.■橙黄色通过滤色镜orthochromatic filter1.■正色滤光片orthogonal filter1.■正交滤波器oscillator filter1.■振荡器滤波器outside-in filter1.■过滤物自外缘流经过滤介质至中心的过滤器packed bed filter1.■填充层过滤器, 滤清器pale blue filter1.■淡蓝色滤光片panchromatic vision filter1.■全色滤光镜paper air filter1.■纸滤气器parallel resonance filter1.■并联谐振滤波器pass filter1.■滤过器passive filter1.■无源滤波器percolating filter1.■渗床, 渗透滤器phase locked filter1.■锁相滤波器photographic filter1.■照相滤器piezoelectric quartz filter1.■压电晶体滤波器pilot band filter1.■导频带通滤波器pi section filter1.■π 节滤波器plastic media filter1.■塑料滤料滤池plate supply filter1.■板极电源滤波器pleated paper filter1.■折叠纸质滤油器polarizing filter1.■偏振(滤光)片, 极化滤波器polymerized filter1.■聚合物滤色片porous metal filter1.■多孔金属过滤器power line filter1.■电源滤波器power separation filter1.■电源分隔滤波器prediction filter1.■预测过滤器preliminary filter1.■初步过滤, 粗滤pressure filter1.■压力过滤器primary filter1.■(彩色电视系统中)基色滤色器; 初级滤清器proto-type filter1.■原型滤波器psophometer filter1.■噪声计滤波器pulp filter1.■滤浆器pulsed filter1.■脉冲滤波器quadrant filter1.■象限滤波器radio-frequency filter1.■射频[高频]滤波器radio-range filter1.■无线电信标用滤波器rapid sand filter1.■快速砂滤池ray filter1.■滤光器, 滤色镜reactance filter1.■电抗滤波器receiving filter1.■接收[输入]滤波器rectangular filter1.■矩形波滤波器, 方波滤波器