周期性的

Results: There was a cyclic change in the distribution of the ER and PR in glandular epithelium ,stroma and myometrium.

结果显示ER、PR在腺体、间质及肌层中的分布不完全相同，并呈现周期性的变化。

About four out of five people with RLS also experience periodic limb movements during sleep, according to Winkelman.

Winkelman指出，大约五分之四的RLS患者在睡觉时会有周期性的肢体运动。

Sometimes the input is periodic with a low frequency, but with a duty cycle of less than 50%.

有时，是周期性的输入与低频，但低于50％的占空比。

Actually, this presentation is even more striking, since it consists of a periodic series of dazzling flashes .

其实，这一介绍，更是引人注目，因为它是一个周期性的一系列令人眼花缭乱的闪光。

Once society underwrites banks, the choice is between big equity buffers that push up the price of credit but make things safer, or smaller buffers and periodic bail-outs.

一旦社会控股了银行，就变成了是选择增加大规模的缓冲股本推高信用成本但会使银行更安全，还是选择减小缓冲但却要周期性的救助。

Their wages barely kept them above the bread line; periodic bouts of mass unemployment thrust them well below it.

他们的工资几乎只够糊口；周期性的大量失业则把他们推到生存线以下。

A mechanism consisting in general of an escape wheel and an anchor, used especially in timepieces to control movement of the wheel and to provide periodic energy impulses to a pendulum or balance.

擒纵机构，擒纵轮通常由一个擒纵轮和一个支持点组成，特别是在钟表中被用来控制齿轮的运作并提供周期性的推动给钟摆或摆轮

Coffer dams and back berms are often built in the two sides of a roadbed for convenient construction, resulting in obstructing wave but letting tide come into the top of the silt roadbed .

海滩区淤泥长期受周期性的波浪荷载和潮汐荷载作用，在淤泥路基排水固结处理前，为便于施工，一般在两侧填筑围堰，并修建反压护道，波浪作用被阻隔，而潮汐通过排水层进入淤泥路基顶面，对淤泥路基的排水固结过程产生重要影响。

This gleam of the sexual relationships existence, adds step-by-step electric motor characteristics such as only having the cyclicity error but there being no accumulative error.

这一线性关系的存在，加上步进电机只有周期性的误差而无累积误差等特点。

No modern society could accept the downswings that were routine in the 19th century, an era of much less intervention. The average length of a recession between 1854 and 1919 was 22 months.

没有一个现代社会能够接受19世纪周期性的衰退，那个年代政府干预比现在少得多。1854年到1919年间经济衰退的平均持续时间为22个月。

Breath, muscle contraction of the buttocks; arch body, as far as possible to hold his head, right leg straight towards the ceiling (peg-leg knee in order to avoid muscle tension).

呼气，收缩臀部肌肉；拱起身体，尽量抬起头来，右腿伸直朝向天花板（膝微屈，以避免肌肉紧张）。

The cost of moving grain food products was unchanged from May, but year over year are up 8%.

粮食产品的运输费用与5月份相比没有变化，但却比去年同期高8％。