One simple and (at least, in the movies) popular test to determine whether a diamond is real is to run it across a piece of glass.

确定钻石是真是假的一个简单而（至少在电影里）流行的测试是让它在一片玻璃上滚。

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"Test-tube baby" was a media invention, but as long as it's in glass, it's in vitro.

“试管婴儿”是媒体捏造的。 然而，只要是在玻璃器皿中，就是在试管内。

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The steam passes along the plastic tube to the test tube, where it condenses on contact ith the ice-cooled glass.

蒸汽经过塑料导管传到试管过程中，接触到冰冷的玻璃后开始液化。

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This rash does not whiten when pressed with a glass - the 'glass test'.

BBC: Precautions follow meningitis deaths

This is biology in vitroin glass test tubes, that is.

FORBES: Biology in silico

Spencer Ante writes about test-driving the Glass in the WSJ.

FORBES: Sergey Brin's Favorite Google Glass Feature