透气管（vent pipe）是1996年公布的航海科学技术名词。
即使是海水也要注意不能从透气管中溢出。
Even if it is sea water, pay careful attention to prevent an overflow from the air vent.
一是埋设透气管；二是安装透气梁，但二者都有不足之处。
The first kind is embedding gas permeable pipe, and the other is installing a permeable beam in tundish.
气管又分支成许多微气管，微气管里充满液体，吸入的氧气溶解于其中，穿透气管管壁扩散到昆虫的无数细胞中。
dissolves and then diffuses across the wall of the tracheole and into several of the insect’s cells.
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