| 单词 | 周期性 |
| 释义 | DEFINITIVE EXAMPLES 权威例句〔REM〕The rapid, periodic, jerky movement of the eyes during certain stages of the sleep cycle when dreaming takes place.眼球速动期：快速的，周期性的，在睡眠周期的某个时期做梦时发生的痉挛性的眼睛的运动美国传统〔SOMETIMES〕Periodic failures of the olive crop kept the country in constant debt. 橄榄周期性歉收使得国家常年负债。朗文写作活用〔Wilson cycle〕The cyclical opening and closing of ocean basins caused by movement of the earth's plates.威尔逊周期：由于地球板块移动所引起的周期性海洋出现和消失美国传统〔amplitude〕Physics The maximum absolute value of a periodically varying quantity.【物理学】 振幅：周期性变量的最大绝对值美国传统〔amplitude〕The maximum absolute value of a periodic curve measured along its vertical axis.振幅：沿垂直轴摆动的周期性曲线的最大绝对值美国传统〔aperiodic〕Occurring without periodicity; irregular.无周期性发生的；不规则的美国传统〔appear〕New strains of viruses appear periodically.新菌系的细菌周期性地产生美国传统〔biological clock〕An innate mechanism in living organisms that controls the periodicity or rhythm of various physiological functions or activities.生物钟：生物体内固有的能控制各种生理功能或活动周期性或节律的机制美国传统〔bloom〕The recurrent fad bloomed again.那种周期性风尚又盛行起来了。21世纪英汉〔circuit〕The area or district thus covered, especially a territory under the jurisdiction of a judge in which periodic court sessions are held.法庭巡回区：划定的地区或区域，特指在由法官裁决的周期性开庭的地区美国传统〔cycle〕To move in or as if in a cycle.循环：周期地或者好象周期性地运动美国传统〔cycle〕To occur in or pass through a cycle.周而复始，循环：周期性的发生或者运动美国传统〔cyclically〕These events occur cyclically.这些事是周期性出现的。韦氏高阶〔cyclical〕Changes in the economy have followed a cyclical pattern.经济呈周期性变化。剑桥高阶〔cyclic〕Economic activity often follows a cyclical pattern.经济活动常常遵循周期性模式。牛津高阶〔dipsomania〕An insatiable, often periodic craving for alcoholic beverages.间发性酒狂，酗酒狂：难以控制、往往周期性的对酒精饮料的渴望美国传统〔erupt〕Epidemics periodically erupted throughout the 19th century.整个 19 世纪流行病周期性爆发。牛津搭配〔escape wheel〕The rotating notched wheel periodically engaged and disengaged by the anchor in an escapement.（钟表的）擒纵轮：在（钟表的）擒纵机构中带有刻痕的旋转齿轮，可与钟锚周期性的啮合和不啮合美国传统〔fade〕A periodic reduction in the received strength of a radio transmission.周期性的衰减：在无线电的传送过程中，接收能力的周期性减弱美国传统〔faradic〕Of, relating to, or using an intermittent asymmetrical alternating electric current produced by an induction coil.法拉第的：感应线圈产生的周期性非对称交变电流的或与之有关的，或利用这种电流的美国传统〔hunting〕Electronics The periodic variation in speed of a synchronous motor with respect to the current.【电子学】 （同步电动机的）速度偏差：同步电机运行速度的周期性变化美国传统〔insanity〕He suffered from periodic bouts of insanity.他患有周期性精神失常。剑桥高阶〔nutation〕Astronomy A small periodic motion of the celestial pole of Earth with respect to the pole of the ecliptic.【天文学】 章动：地球天极就黄道极而言的小的周期性转动美国传统〔oscillate〕To swing back and forth with a steady, uninterrupted rhythm.持续周期性地摆动：以稳定的、不间断的节奏来回摇摆美国传统〔ozone hole〕An area of the ozone layer, such as the large area over Antarctica or the smaller area over the North Pole, that periodically becomes depleted of ozone.臭氧层破洞：会出现周期性臭氧破洞的臭氧层区域，如位于南极洲上空大块区域与北极上空小块区域美国传统〔pendulum〕The spaceship's jets were fired periodically to dampen a side-to-side pendulum motion that had developed.宇宙飞船的喷射装置周期性地喷射，以减缓飞船出现的左右摇摆现象。剑桥高阶〔periodic law〕The principle that the properties of the elements recur periodically as their atomic numbers increase.周期律：元素属性根据原子数的增长周期性出现的规律美国传统〔periodical〕Periodic.周期性的美国传统〔periodicity〕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美国传统〔periodic〕Having or marked by repeated cycles.周期的，周期性的：循环往复的或以此为特征的美国传统〔periodic〕He suffers periodic mental breakdowns.他周期性地精神失常。剑桥高阶〔phase〕A particular stage in a periodic process or phenomenon.相，周相：周期性的过程或现象中的特殊阶段美国传统〔phase〕Astronomy One of the cyclically recurring apparent forms of the moon or a planet.【天文学】 （月等的）变相，盈亏：月亮或其它行星周期性的重复出现的明显形式美国传统〔phenology〕The relationship between a periodic biological phenomenon and climatic conditions.物候关系：周期性的生物现象与气候条件之间的联系美国传统〔phenology〕The scientific study of periodic biological phenomena, such as flowering, breeding, and migration, in relation to climatic conditions.物候学，物候现象：研究与气候条件有关的周期性生物现象的科学，如开花、繁殖和迁移美国传统〔plague〕Inflation will remain a recurrent plague.通货膨胀将继续成为周期性的烦扰。柯林斯高阶〔postnasal drip〕The chronic secretion of mucus from the posterior nasal cavities, often caused by a cold or an allergy.后鼻滴涕：从鼻腔后部流出的周期性粘液分泌物，通常由感冒或过敏症引起美国传统〔pulsate〕These verbs mean to exhibit recurrent rhythmical movements of or like those involved in the periodic expansion and contraction of the heart.这些动词的意思是表现类似心脏周期性扩张和收缩的重复有节奏的运动。美国传统〔pulsejet〕A jet engine in which air intake and combustion occur intermittently, producing rapid periodic bursts of thrusts.间歇喷气机：一种间歇性地进行气体吸入和燃烧并产生迅速的周期性猛推力的喷气式发动机美国传统〔recur〕Certain fevers recur at regular intervals.有些发烧症状会周期性反复出现。英汉大词典〔revolve〕To recur in cycles or at periodic intervals.循环往复：在周期中或周期性间隔中重复出现美国传统〔roll〕To move in a periodic revolution, as a planet in its orbit.周期性运转：以定期运转的方式移动，如行星在自己的轨道上运行美国传统〔rut〕An annually recurring condition or period of sexual excitement and reproductive activity in male deer.雄鹿周期性发情期：雄鹿一年一次的发情和繁殖活动时期和状况美国传统〔seasonal〕Monsoon rains are seasonal in Asia.季风雨在亚洲是周期性的。英汉大词典〔southern oscillation〕The atmospheric pressure conditions corresponding to the periodic warming of El Niño and cooling of La Niña.南方大气波动：相符合于周期性厄尔尼诺现象的温暖及拉尼娜现象的寒冷所造成的大气压力美国传统〔spectroscopic binary〕A binary star system that is identified by periodically shifting lines in its spectrum.周期性变换其光谱谱线的双星系美国传统〔subharmonic〕Of, relating to, or being a wave with a frequency that is a fraction of a fundamental frequency.分（频）谐波的：频率为基波频率整约数的一种周期性波的，与这种波有关的，是这种波的美国传统〔sunspot〕Any of the relatively cool dark spots appearing periodically in groups on the surface of the sun that are associated with strong magnetic fields.黑子：周期性地成群出现在太阳表面的温度相对较低的暗点，与强磁场有关美国传统〔sustained yield〕The continuing yield of a biological resource, such as timber from a forest, by controlled periodic harvesting.持续收获：通过控制周期性收获而取得的一种生态资源的不断产生，如森林中的木材美国传统〔tide〕The periodic variation in the surface level of the oceans and of bays, gulfs, inlets, and estuaries, caused by gravitational attraction of the moon and sun.潮，潮汐：由月球和太阳的重力吸引造成的海洋、海湾、水湾及河口等处水面高度的周期性变化美国传统〔variable-rate mortgage〕A mortgage that is renegotiable at periodic intervals. The interest rate may be raised or lowered and is indexed to the prevailing market rates.利率可变抵押：在周期性间隔期间可重议定的抵押。利率可能上升或下降并与当前普遍的市场利率相挂钩美国传统Changes in the economy have followed a cyclical pattern.经济呈周期性变化。剑桥国际He suffered from periodic bouts of insanity.他患周期性精神失常。剑桥国际He suffers periodic mental breakdowns.他有周期性的精神失常。剑桥国际History has shown that economic markets are cyclical.历史已经显示出经济市场是周期性的。牛津商务I know what it's like to have migraines, so I do sympathize (with you).我知道周期性偏头痛有多难受，所以我很同情你。剑桥国际I was born during one of the periodical wanderings of my family. 我出生在一个我家周期性的流浪时期。译典通Improved economic conditions have benefitted cyclical stocks. 经济状况的好转令周期性股票受惠。牛津商务She went through periods of bingeing (also binge-eating).她经历过周期性的暴食。剑桥国际 |
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