... 夹持具，柄，顶模 holder 压紧凸缘 holding flange 保温炉 holding furnace ...
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Tightness test both the shell and tube sides of the exchanger to check that the flange gaskets are holding tight.
紧力测试对热交换器的管程与壳程，检查法兰垫圈是否紧密。
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