This paper brief describe principle of scan laser out diameter gauge in which have successfully used production line. Correlated analysis and discussion are gaven.

本文简述应用于动态生产线上的激光扫描外径测量仪器之检测原理，并给出有关分析与讨论。

youdao

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 devil took out a huge diamond while saying to the king, "Measure the diameter of it."

魔鬼取出一块巨大的钻石对国王说：“量量它的直径。”

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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

If the record is confirmed, an 18 ft diameter hollowed out golf ball will be constructed to sit atop the tee, from where golfers will be able to tee off.

CNN: February 5, 2013 -- Updated 1840 GMT (0240 HKT)

That changed in the mid-1980s, when microscopic sieves--spread throughout steel tubes 30 feet long and 4 to 5 inches in diameter--were developed to filter out undesirable elements before the whey is dried to a powder for use in food manufacturing.

FORBES: Making Whey

That changed in the mid-1980s, when microscopic sieves--spread throughout steel tubes that are 10 meters long and 10 to 12 centimeters in diameter--were developed to filter out undesirable elements before the whey was dried to a powder for use in food manufacturing.

FORBES: Making Whey