installed and welded 中文意思是什麼
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Gate valves should be installed and welded into the pipline with the wedge or disc in the fully closed position
閘閥應該在楔板或閥板處于完全關閉位置時才能安裝或焊接到管道中。 -
Globe valves should be installed and welded with the disc in a fully closed position to prevent damage to the valve during installation
應該在截止閥閥瓣處于完全關閉狀態下進行安裝和焊接，以避免在安裝過程中隊閥門造成損壞。
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