Also, the subject which is a concentrated couple acting on an arbitrary point and in any direction of a plate with four built-in edges, is discussed in this paper.

文中还讨论了在任意点任意方向受集中力偶作用的四边固定板问题。

youdao

We’re using a concentrated bottle of Shaklee’s H2, and I think it’s going to be a couple of years before I need to buy more. (I also use it as a glass cleaner.)

我们经常使用的是Shaklee’s H2，而且我认为很长一段时间内我们不需要购买更多（我还将它当成玻璃清洁剂）。

youdao

I have always concentrated on the fact that this couple lied, which they did.

我一直很注重这一对夫妻说谎的事情，还有他们的行为。

youdao

It's obviously concentrated in a couple parts of the world doing very, very, very important work.

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