seal ring
释义
印章戒指：一个刻有印章的手指戒指，也称为“signet ring”。
例句
1·Adjusting the seal ring you can get the best seal .
调整密封圈的押紧程度，可以获得最佳密封效果。
2·Valve is closed twice so that the seal ring can self-center.
关闭阀门两次，使得密封环能够自动校准中心。
3·The seal ring is placed overhead to extend the service life.
密封胶圈上置，延长使用寿命。
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