微气管里充满液体。

The microtrachea is filled with fluid.

youdao

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.

youdao

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.

youdao