货舱舱口盖密性试验(启闭试验、应急启闭试验)。

Tightness test (opening and closing test, emergency opening and closing test) for cargo hatch cover.

youdao

货舱舱口盖密性试验(启闭试验、应急启闭试验)。

Tightness test (opening and closing test, emergency opening and closing test) for cargo hatch cover.

youdao