Building a neon sign is an art practiced by professionals trained on the job to mold glass tubes into decorative shapes and letters.

建造霓虹灯是一门艺术，由经过培训的专业人士在工作中把玻璃管塑造成装饰性的形状和字母。

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Individual insects are placed in plastic or glass tubes (1.5-3.0 ml capacity for small ants, 5-8 ml for larger ants) containing 75% to 95% ethanol.

单个昆虫放置在装有75%到 95%的乙醇的塑料管或玻璃管中（容量为1.5-3.0ml 的装小蚂蚁， 5-8ml 的装大一点的蚂蚁）。

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Jake: Glass tubes.

杰克：玻璃管。

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For example, lightning can create tubes of glass when it strikes sand that has the right combination of minerals.

VOA: special.2009.09.16

So, you would expect that when you rip open the skull and look at the brain; you'd see something glorious, you'd see, I don't know a big, shiny thing with glass tubes and blinding lights and sparks and wonderful colors.

所以你会期待,当你打开头盖骨时,当你看到大脑的时候,你会看到些非常辉煌的东西,你会看见,我不知道,附有玻璃管的大块发光的东西,发出耀眼的光芒,不停地冒着火花,拥有美妙的颜色

耶鲁公开课 - 心理学导论课程节选

At that time, Forest was developing an instrument for genetic analysis involving thousands of glass tubes.

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And medical students use the glass tubes to practice catheter or stent placement.

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Boyden told him about his own work in neuroscience, and about a problem that involved glass tubes for measuring neurons.

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