为促成一次核爆炸，临界质量必须在一百万分之一秒内聚集在一起。
In order to make a nuclear explosion, the critical mass must come together within a fraction of a millionth of a second.
1微秒就是一百万分之一秒。
每个电波脉冲群仅持续约一百万分之一秒的时间。
Each burst of waves lasts only about a millionth of a second.
没错，一微米是一百万分之一米，人类头发的宽度大概是100微米。
To put that into some sort of perspective, a micro-metre is a millionth of a metre; the width of a human hair is about 100 micro-metres.
雾气中的水滴极小，通常在1 -50微米(一百万分之一米)之间。
Water droplets in fog are very small, typically between 1 to 50 microns (one-millionth of a metre) across.
那家伙说NBA球员是一百万分之一，我说，男人，看，我要一百万分之一。
The guy said NBA players are one in a million, I said, Man, look, I'm going to be that one in a million.
每秒执行一百万个事务并不意味着每个事务都可以在一百万分之一秒内执行完。
Performing 1 million transactions a second does not mean each transaction can be performed in a millionth of a second.
他学会了在千分尺上辨识一百万分之一英寸，会用镶嵌着金刚石的工具制作砂轮。
He had learned to read the millionths of an inch on the micrometer and to shape the grinding wheel with an instrument set with a diamond.
可她丈夫对我太刻薄了——他多次是那样凶我——就因为他是治安官，说我是流氓，还不止这些，我说的还不到他对我干的一百万分之一多。
But her husband was rough on me-many times he was rough on me-and mainly he was the justice of the peace that jugged me for a vagrant. And that ain't all. It ain't a millionth part of it!
金属表层大约厚20微米（一米的一百万分之一），而当时的胶粒宽达10-15 微米——厚的足以使金属表层散裂，这样反而弊大于利。
Surface coatings tend to be about 20 microns (millionths of a metre) thick. The capsules were 10-15 microns across—large enough to disrupt the coatings, and thus do more harm than good.
金属表层大约厚20微米（一米的一百万分之一），而当时的胶粒宽达10-15 微米——厚的足以使金属表层散裂，这样反而弊大于利。
Surface coatings tend to be about 20 microns (millionths of a metre) thick. The capsules were 10-15 microns across—large enough to disrupt the coatings, and thus do more harm than good.
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