hermetic

劍橋詞典

engineering   specialized
(of a container ) so tightly closed that no air can leave or enter
（容器）密封的，不透氣的
a hermetic seal 密封墊
formal
If a particular group is hermetic, the people who live within it don't often communicate with those who live outside it.
（人群）與世隔絕的，不與外界往來的
He entered the hermetic world of the monastery at a young age . 他很年輕時就進了與世隔絕的修道院。 返回 hermetic