spring groove of sealing element 密封元件弹簧槽
An easy tool for measuring the depth of sealing groove is devised.
介绍一种测量抽油杆减振器柱塞密封槽深度的测量工具。
Concerning the problem of measuring diameter and tolerance of large-sized jar sealing groove, the paper introduces a simple, practical and reliable type of measuring tool.
针对大孔径油缸类零件密封槽难以测量的问题，介绍一种简单实用、方便可靠的测量工具。
The flat face and the side face of the plastic hollow brick are provided with a sealing groove, a sealing strip and through holes; the plastic hollow brick can be formed once by pressing.
其构成是塑料空心砖的平面、侧面设有密封槽、密封条、通孔，一次压制成型。
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