外阀门则在外部(通常在壳体的进水部位)。在下潜时，油从外部气泡传如内部气泡。

To dive, oil is transferred from the external bladder to the internal one.

youdao

外阀门则在外部(通常在壳体的进水部位)。在下潜时，油从外部气泡传如内部气泡。

To dive, oil is transferred from the external bladder to the internal one.

youdao