periodic
[.piəri'ɔdik]
adj.周期的, 定期的, 间歇的,完句的
例句与用法:
The quality or state of being periodic; recurrence at regular intervals.
周期性周期出现的性质或状态; 以固定的间隔而发生
A column in the periodic table of the elements.
属,族元素周期表上的一栏
Russian chemist who first devised and published the periodic table of the elements(1869).
门捷列夫,季米特里·伊凡诺维奇1834-1907俄国化学家,是第一个设计并出版元素周期表的人(1869年)
The doctor made periodic visit to the house to see if the baby was all right.
医生定期到这家进行拜访,检查婴儿的健康。
词形变化:
副词: periodically |
a.[Z][B]
1. 周期的, 周期性的; 定期的
the periodic motion of a planet
行星的周期运动
2. 时而发生的; 间歇(性)的
3. 【数】循环的; 周期函数的
4. 【语】完整句的
periodic
词形变化:
副词: periodically |
同义词:
intermittent | serial | occasional | episodic | intervallic | interrupted | sporadic | broken | cyclic | recurrent | regular | continuing | seasonal | periodical |
反义词:
词义辨析:
同义参见:
intermittent
serial
occasional
periodic1[,piəri'ɔdik]adj.1.■定期的;一定时期的;定时的2.■回归的;间歇的,时而发生的3.■周期的;循环的4.■【数学】周期函数的5.■【语法学】用尾重句的;用圆周句的6.■(古希腊语系中)格律群的7.■美丽词句的近义词intermittent periodic2[,piəri'ɔdik]adj.1.■【化学】高碘的
periodicperiodic[piəriˈɔdik]adj.1.■周期(性)的, 定期的,循环的periodic attacks of malaria疟疾的周期性发作periodic law周期律periodic system周期系(统)periodic table周期表2.■某一时期的; 不时发生的a periodic fit of cleaning up one's desk不时地清理桌子3.■【修】掉尾句的(掉尾句是主句在最后出现的一种复合句)
[ˌpɪərɪˈɒdɪk]
adjective
- appearing or occurring at intervals
间歇的;周期(性)的;时而出现(或发生)的
the periodic visits she made to her father.
她对她父亲的定期探望。 - (Chemistry)relating to the periodic table of the elements or the pattern of chemical properties which underlies it
(化)元素周期表的;(周期表中)元素化学性能变化周期的
the periodic law.
周期律。 - of or relating to a rhetorical period
完整句的。 见 period (义项6)
- mid 17th cent.: from French périodique, or via Latin from Greek periodikos 'coming round at intervals', from periodos (see period)
periodic
形容词 periodic:
happening or recurring at regular intervals
同义词:periodical
recurring at regular intervals
recurring or reappearing from time to time
periodic
■The periodic variation in speed of a synchronous motor with respect to the current.
(同步电动机的)速度偏差同步电机运行速度的周期性变化
■In1927 the Chinese revolution entered a new period in its history.
1927年中国革命进入了它历史上的一个新时期。
■The period of exercise was geared down to ten minutes a day for men over 60.
60岁以上的人的锻炼时间减低到每日十分钟。
■Any consecutive set of descriptive clauses terminated by a period, written in the identification, environment, or procedure divisions of a COBOL program.
COBOL源程序中在标识部、环境部或过程部中所书写的,用句号结尾的一组连贯的描述子句。
■January is always a slack period.
一月份总是萧条时期。
■A period or fit of weeping. Often used in the plural.
一段哭泣,一阵哭泣一段或一阵哭泣。常用作复数
■A device that generates periodic signals used for synchronization.
一种产生用于同步的周期性信号的装置。
■A set of gears needs periodic alignment.
一组需要定时调整的齿轮
■A period of trial is often needed to determine whether something is right or wrong.
为了判断正确的东西和错误的东西,常常要有考验的时间。
■Chaucer wrote in the late mediaeval period.
乔叟写作的时代是中世纪末。
■A total amount produced during a given period; output.
产量在既定期间内生产出的产品总量; 生产量
■Can the person have periodic mood wave motion?
人是不是会有周期性的情绪波动?
■The period in which man learnt to make tools of iron is called the Iron Age.
人类学会用铁制造工具的时代称为铁器时代。
■They rehearse regularly and give periodic concerts.
他们定期排练,定期开音乐会.
■He consulted the chronicles of the period.
他参考了这一时期的编年史。
■He was hired for a three month period on a trial basis.
他受雇试用三个月。
■He has only a limited period at his disposal.
他只有有限的时间可由他自己支配。
■He wants you to know that anyone who chooses the path he has chosen is sure to have periodic holidays in jail.
他希望你了解,凡是选择了他所选择的那条道路的人肯定会要定期地到监狱里去度假的。
■He had to decide within a given period.
他得在一定时间内作出决定。
■His factory closed down during the period of economic recession.
他的工厂在经济衰退时期关闭了。
■He's away for an indefinite period.
他离开一段时间,多久未定。
■He's away for an indefinite period of time.
他要离开一段不知多长的时间。
■He excels all other composers of his period.
他超过了同时期的所有其他作曲家。
■He has plagiarized most of the book from earlier studies of the period.
他那本书大部分都是从研究那个时期的著作中剽窃的内容。
■A period of duty at a single place or job.
任职期在某个地方或职务上的一段任期
■The Elizabethan period was the golden age of English drama.
伊丽莎白时期是英国戏剧的黄金时代。
■A fixed period of holidays, especially one during which a school, court, or business suspends activities.
休息日特定时间的假日,尤指学校、法庭或商业部门不上班的日子
■The meeting finally came to a period.
会议终于结束了。
■He was on his feet again after such a long period in hospital.
住院很长一段时间他复原了。
■The amount of work that a machine produces or can produce in a specified time period.
作业量一台机器在一特定时间内生产或能生产的工作量
■Which period of history are you studying?
你正在学哪一段历史?
■Can you tell me how iron is made in the first period?
你能否告诉我在第一时期人们是怎样炼铁的?
■You'll be on your mettle during the training period.
你要在训练期间尽最大努力。
■A migratory bird that stops in a particular place for a limited period of time.
侯鸟在一特定的地方停留一段有限时间的一种迁移鸟类
■The periodic premium paid for this coverage.
保费用为此种保险定期支付的保费用
■The position of an element in the periodic table.
元素在周期表中的位置
■The company is in for a period of retrenchment.
公司目前正值削减开支阶段。
■The period of the winter solstice, about December22.
冬至冬季的至点,大约在12月22日
■Relating to or occurring during the time following a glacial period.
冰期后的与冰期后的时期有关的,或在冰期后的时期里发生的
■A detachable slip calling for periodic payments, as for merchandise bought on an installment plan.
分期付款联票要求分期付款的可分离纸条,为付给以分期付款计划买来的东西
■Don't interrupt him; he's been writing away all morning and likes to have a long period free of other considerations.
别打搅他,他已不停地写了一上午了。他喜欢有个较长的时间不受其它事情的干扰。
■Drawing up of periodic maintenance schedules.
制定定期维修计划;
■Artifacts of the pre-Columbian period.
前哥伦比亚时代的手工制品
■The doctor made periodic visit to the house to see if the baby was all right.
医生定期到这家进行拜访,检查婴儿的健康。
■Supplier audit, periodic or randomly.
协助公司对供应商的例行或临时性稽核。
■Last year was a prolific period in the composer's life.
去年是作曲家一生中创作丰收的时期。
■An object having special value because of its age, especially a domestic item or piece of furniture or handicraft esteemed for its artistry, beauty, or period of origin.
古董由于年代久远而具有特殊价值的物体,尤指由于工艺,美观和兴起时期等方面受到重视的土产,家具或手工艺品
■A period signals the end of a sentence.
句号表示一个句子结束了。
■A period is the regular ending for a sentence.
句点是一个句子之正规的结尾。
■History of humankind in the period before recorded history.
史前史有历史记载之前的人类历史