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）。

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.

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筒式熔断器是套在管中的熔断器。

Cartridge fuse is a fuse cased in a tube.

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立管内部核心是空心的(管中管)，留给钻柱使用。

The riser's inner hollow core (a pipe within a pipe) is reserved for the drill string.

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He was doing experiments in a gas discharge tube.

实验是在一个气体放电管中进行的。

麻省理工公开课 - 固态化学导论课程节选

This tube, this hollow tube, which food passes through is made up of many, many epithelial cells which directly abut one another and would be a flat sheet except that it's rolled up into a tube.

这个管道,这个中空的管道,食物可以穿行其中,而它就是由许多许多上皮细胞构成的,上皮细胞一个连着一个,形成了一个平坦的细胞层,但实际上它们还在肠管中卷成管状

耶鲁公开课 - 生物医学工程探索课程节选

She is a PhD candidate in the department of music, just passed her qualifying exam with flying colors, so here she is to demonstrate the bassoon for us, lowest member of the woodwind family.

她是音乐学院的在读博士,刚刚以出色的成绩通过资格考试,她马上要为我们演奏巴松管,木管乐器中声音最低沉的乐器

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