双语例句
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Tighten packing nut lightly if leaks occur around stem.
如果阀杆周围出现泄漏，则轻轻紧固压紧螺母。
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The upper set of wrench flats belong to the packing nut, which is threaded into the valve body.
扳手面上面的那个属于衬垫螺母，它是通过螺纹旋进阀体的。
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The leaks can usually be fixed by depressurizing the valve outlet and retorquing the packing nut.
通常可以通过对阀门排气口减压和重新调整衬垫螺母来阻止泄漏。
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