hermetic seal

基本解释

Featuring a hermetic seal and adhesive mount, this triaxial IEPE accelerometer weighs only 2.3 grams.
具有装入密封胶密封的特点，这种三轴IEPE加速度计的重量只有2.3克。
The Die valve has already played hermetic sealing and metallic to seal completely two kinds of hermetic sealing patterns.
蝶阀有弹密封和金属的密封两种密封型式。
The last few months have been something of a challenge for Apple, known for maintaining a kind of hermetic seal around itself and its products.
苹果一直把自己和自己的产品都密闭起来，而这前几个月给苹果带来了一些挑战。

To drill the well, engineers have devised an ingenious system of hollow "riser pipes" that create a hermetic seal between the well opening on the sea floor and the ship swaying above.
FORBES: The delicate art of sucking up