edge sealing
【机械工程】封闭插销，热交换器 (热交换设备)
sealing plug heat exchanger (heat-exchange apparatus)
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相关词条
sealing compound
slide ring sealing (slide ring packing)
sealing strip (packing cord)
SEALING -plugs for containment vessels of nuclear reactors
heat-sealing
sealing machine
plug with inflatable sleeve for the sealing of boreholes or wells