hermetic-seal relay [电] 封闭型继电器
hermetic seal form 密封的形式
a hermetic seal 熔接密闭
hermetic seal cable 密封电缆
A hermetic seal is used at the top of this sample box.
这个样品盒的口用密封条封着。
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。
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