在计算底部钻具组合的受力和变形时，以前一般都是按弯矩为零的条件来确定其上切点的位置。

The tangency point of Bottom Hole Assembly is located at where the drill string just touches the wall of the borehole, and the contact force is zero here.

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他说“两只小白鼠最后在真实的零重力条件下做了试验，并拍成了录像，但是考虑到非常敏感，美国宇航局只提供了剪辑版。”

Two guinea pigs then tested them in real zero-gravity conditions. The results were videotaped but are considered so sensitive that even Nasa was only given a censored version.

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它们释放出一种神圣的零点场能，是纯然的爱，无条件的爱，也是一种只能在5维及以上维度存在的光码。

They are emitting a divine energy of zero field, of pure love, unconditional love, and a light-code that can only exist in the 5th dimension and above.

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So even though we think of conditions as being Boolean values true or false, really underneath the hood true means anything other than zero.

即使我们考虑,布尔值的真假条件，在底层“真“表示非零。

哈佛公开课 - 计算机科学课程节选