周期 的英文翻译

Cyc

cycle

period

periods

wheel

周期 的中文句子和英文句子

（同步电动机的）速度偏差同步电机运行速度的周期性变化

The periodic variation in speed of a synchronous motor with respect to the current.


属，族元素周期表上的一栏

A column in the periodic table of the elements.


周期性周期出现的性质或状态；以固定的间隔而发生

The quality or state of being periodic; recurrence at regular intervals.


月大约和月亮盈亏的一个周期相当的时间单位，或约三十天或四周

A unit of time corresponding approximately to one cycle of the moon's phases, or about30 days or4 weeks.


新菌系的细菌周期性地产生

New strains of viruses appear periodically.


现在周期表包括人类已知的全部元素，这些元素按适当的顺序排列起来。

The periodic table now contains all the elements known to man arranged in their proper sequence.


（雌性动物的）动情，动情周期大多数哺乳动物（包括人类）的雌性产生的周期性的性冲动，在此期间内雌性具有排卵的优势，所以该期间最适合性交；刺激

The periodic state of sexual excitement in the female of most mammals, excluding human beings, that immediately precedes ovulation and during which the female is most receptive to mating; heat.


这是经济繁荣和经济萧条的周期变化。

This is the cycle of economic booms and slumps.