In our first-aid class we practised on one another.

我们在急救课上充作实习的对象。

The police had some difficulty in matching up the statements taken from the two witnesses.

警方难以使两个证人提供的证词吻合。

Our relationship is based on reciprocal respect.

我们的关系是以尊重为基础的。

The various forces to a large degree canceled out.

在大程度上这些不同的力抵消了。

The attack on their country united squabbling political factions in a common purpose.

对他们国家的进攻使得不和的政治团体为了共同的目标团结起来。

The determent policy has been dubbed MAD, an appropriate acronym which stands for mutual assured destruction.

核“禁”政策称为MAD,,是表示保证毁灭的缩合字。

The trust was simply an extralegal arrangement by which competing manufacturers pooled properties to achieve monopoly.

托斯单纯是一种超法律的安排，通过，竞争的制造家实行联营，以便垄断。

Watersupply and drainage engineering is sorted out engineering discipline, and it is a field of intercross multi-discipline.

摘要给水排水工程为工程学科门类，是多学科交叉形成的一门学科。

Reciprocity includes more than gifts and favors; it also applies to concessions that people make to one another.

惠不仅仅包括礼物和优待；对人们之间作出的让步也同样适用。

It uses two separate "microcamera" lenses to shoot two pictures at the same time on VHS-C video-Cassette type.

采用分离的“微型摄像机”镜头在vhs-c录像带上同时拍下两幅画面。

For the moment, the balance is maintained by what Nick Carn of Odey, a hedge-fund group, calls “mutually assured destruction”.

目前，平衡由NickCarnofOdey，一家对冲基金机构所称的“毁灭”保持着。

You can make a game out of seeing how many times some of these marketers namedrop each other from cover to cover.

你可以做个调查，看一下有多少营销师在他们的书中从头到尾没有彼此高攀金的。

So long as their balance remains undisturbed, the oxygenated and hydrogen sulfide–saturated waters stay separated, and their interface, known as the chemocline, is stable.

直到达成平衡、不干扰，充氧的海水与饱和硫化氢的海水彼此分隔，而且两者间的界面「化变层」也是稳定的。

A new variable step-size LMS adaptive filtering algorithm is presented, which makes use of the intercorrelation function of the relative output error signal to control the new variable step-size.

针对上述问题，提出了一种新的变步长LMS自适应滤波算法，采用对的误差关函数来控制步长更新。