短语
外填料式浮头换热器
outside-packed floating head exchanger
;
outside-packed floating exchanger
十字头填料压盖
land for crosshead
石头填料蒸馏塔
rock packed column
接头填料
packing joint
填料式伸缩接头
Expansion joints of sleeve type
膨胀接头的填料压盖
expansion gland
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