... three stage ram 三段式柱塞 three-panel sliding door 旁开三扇门 three-panel two-speed door 旁开三扇双速门 ...
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短语
旁开三扇双速门
three-panel two-speed door
;
speed door
三扇旁开门
three panel side opening door
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three-panel sliding door
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three-panel sliding door
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