double swing door

常見例句

雙語例句

• The original seal structure and the improved seal structure of the double-leaf swing door at the outside end are described.
  介紹了外端雙扇擺門的原密封結構和改進后的密封結構，對比分析了硅橡膠條、尼龍毛刷和羊毛毛刷的密封性能。
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