密封的英文：
seal

参考例句：

Seal/O ring
密封胶圈

tighten up
密封,拉紧,拧紧

FLEXIBLE CONDUIT WITH WATER-PROOF PACKING GLAND
防水密封接头挠性管

labyrinth gland
迂回[曲折,迷宫式]密封盖

FLEXIBLE CONDUIT WITH EX(d).PACKING GLAND
防爆密封接头挠性管

Maintaining a high-pressure environment around the sealed containers results in temperatures exceeding 100℃.
维持密封容器周围环境高压会引起温度超过100℃。

Once mixed, the calcium gluconate 2.5% jelly can be repackaged by the pharmacist in the K-Y tube and resealed.
一旦混合好了，药剂师可以把2.5%的葡萄糖酸钙凝胶重新包装在K-Y试管内并密封。

Hermetically tight seal
气密密封

The probe unit is hermetically sealed.
探头装置是密封的。

The probe unit is hermetically sealed
探头装置是密封的。

seal是什么意思：
n. 海豹；图案，印章；封印；保证，誓约；标志，象征
v. 保证；密封；确定；盖章；密封

A stamp or seal meant to be impressed.
图章用来盖戳的图章或印章

The experience seals their friendship.
这一经历确定了他们的友谊。

Sealing is prohibited in many countries.
许多国家禁止捕海豹。

The probe unit is hermetically sealed.
探头装置是密封的。

It was stored in a tube with a break seal.
它保存在一个有断裂密封垫的试管里。