One example about the decrease in diameter of ring joint gasket is reported. The reason of decrease in diameter is caused by compressive stress that make the whole gasket yielded.

报道一例八角垫直径缩减现象，指出直径缩减原因是垫圈整体受压屈服。

youdao

By 2011 debris in the center of the ring, which is about a light-year in diameter, was blazing more intensely as the supernova entered a new stage of stellar demise.

到2011年为止，因为这个超新星进入了星球消亡的新阶段，所以这环物质中心直径大约是一光年的碎片燃烧的更加强烈了。

youdao

Very nonintuitive, that this length here is the same as the diameter of the ring.

很令人费解，这里的,长度和圆环的直径相等。

youdao

It looks a little something like that, and the screen doesn't quite do it justice here, Z but there's two alphabets; A through Z, and then A through Z, -- but the inner A through Z is on a small -- it has a smaller diameter; so it's a ring of letters.

它看起就像那样的东西，那个画面做的不是这么公正，这里有两个字母表，A到Z，然后A到，但是戒指内部的A到Z是在一个小直径的上面-,它有一个小的直径，所以它是一个有字母的戒指。

哈佛公开课 - 计算机科学课程节选