double-action self-closing door
... 双削齐边锯:Chip edger 双向自动关闭的门:double-action self-closing door 双向正交索网结构:suspended crossed cable net ...
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... double-actionself-closingdoor双向自动关闭的门 double-deckcrossing双层干线 double-Hblock双工字型大厦 ...
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