... 膨胀轮环 expansion hoop (or ring) 膨胀轮环 expansion ring (or hoop) 膨胀袪水器 expansion trap ...
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... 膨胀机(往复蒸汽机) expansion engine 膨胀轮环 expansion hoop (or ring) 伸缩接合,伸缩接头 expansion joint ...
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