The largest terrestrial planet, Earth has a diameter only one quarter as great as the diameter of the smallest Jovian planet, Neptune, and its mass is only one seventeenth as great.

最大的类地行星地球的直径仅仅是最小的类木行星海王星的四分之一，而且地球的质量仅仅是其质量的十七分之一。

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It turns out that the diameter is actually 2.5 centimeters.

它的直径实际上是 2.5 厘米。

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The maximum penetration depth of gas flow is increased with the increase of gas momentum while the diameter of oxigen gunjet keeps constant.

气流的最大穿透深度随气体动量的增加而增加，而氧气喷枪的直径保持恒定。

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And how that works is, as your number increases, the diameter gets smaller and smaller."

VOA: special.2009.05.18

And, that's a good thing to know because if you come out with an answer that's somewhere near the diameter of the universe and it's supposed to be the diameter of an atom, then you will know that you probably made a mistake.

这是我们需要知道的,因为当你做一道题得到的答案,是宇宙的直径,而正确答案是原子直径时，你能很快发现你的错误。

麻省理工公开课 - 固态化学导论课程节选

It turns out that the diameter is actually 2 . 5 centimeters.

这个实验完成的很好,而且又没有放射性。

麻省理工公开课 - 化学原理课程节选

From the size of this drop, they can deduce the diameter of the planet.

ECONOMIST: Transits of Venus

Instead of looking at the number of hairs, it focused on thickening the diameter of each strand.

WSJ: Old Hair Days: Products to Help Manage Gray and Thinning Hair

"They're smaller than the diameter of a human hair, less than 100 microns in size, " explains Dr Lane.

BBC: Toba super-volcano catastrophe idea 'dismissed'