周期性的

Companies are complaining of a shortage of skilled labour, he says: there just aren't enough good people to go around.

问题的关键在于，目前德国的经济复苏究竟是周期性的好转，还是源于更深层次的结构变化。

The economic long wave is produced by a periodicity renew of foundation industries.

经济长波是周期性的基础性产业技术更新产生的。一国在长波中的位置变化，决定了其经济繁荣程度的变迁。

Normally the life of a fund is 7-10 year,"This industry is to have periodic, alleged 10 years of one metempsychosis, we collect money in collect at that time gold when consider the case of financial crisis inside, so our fund cycle is 10 years."

通常一个基金的寿命是7-10年，"这个行业是有周期性的，所谓十年一轮回，我们当时在募集资金的时候就将金融危机的情况考虑在内了，所以我们基金周期是十年。"

The Iterative Learning Control must be used on a repeatable or a peridocital system. By using motion time and iteration times as the two orthogonal vectors, a two-dimensional control system is construct, which can discribe the attribute of the dinamic behavior and learning process completely.

反覆式学习控制必须应用於具有反覆性或周期性的系统，文中将以运动时间与学习次数作为二正交向量来架构二维控制系统，使其能够完整的描述控制系统本身的动态行为与学习过程的特性。

It was formed by repeated heating and cooling in polymer surface following the intensity distribution caused by interference of reflected surface electromagnetic wave and incoming polarized laser beam.

它首先是激光入射光与入射光在薄膜表面形成的扩散光之间的干涉现象，从而引起材料表面激光能量发生周期性的变化，在一定量的脉冲作用下，聚合物表面产生微波纹。

The real question is whether Mr Henderson can remould GM for the long-term, rather than foster a cyclical revival.

真正的问题在于，韩德胜对通用汽车的改造能否有利于它的长期发展，而不只是促生一轮周期性的复苏。

Since the structure and the shape of the crankshaft are complicated and the loads vary periodically,it is difficult to calculate its strength and rigidness using classical mechanics.

因为曲轴的结构形状比较复杂，各个曲拐的受力又在发生周期性的变化，所以运用经典力学对其进行强度和刚度计算有一定的困难。

In our view, the two, cyclically historic dates of spring and fall are the time to protect gains and in some cases exit markets entirely and wait for selling storms to blow-over.

我们认为，两，周期性的历史时期的春季和秋季是保护成果的时间，在某些情况下完全退出市场，等待出售风暴的打击比。

The method of simulating a helically invariant field with composite period of multiplicity is also given.

本工作亦给出了由若干不同的方位向周期性的螺旋导线所合成的螺旋对称磁场的模拟方法。

Estrus,also oestrus:The periodic state of sexual excitement in the female of most mammals

&动情，动情周期：大多数哺乳动物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&

In the negative and interrogative forms, of course, this is identical to the non-emphatic forms.

。但是，在否定句或疑问句里，这种带有"do"的方法表达的效果却没有什么强调的意思。

Go down on one's knees;kneel down

屈膝跪下。。。下跪祈祷