closing up of cracks的意思|示意
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封闭裂缝
closing up of cracks的网络常见释义
裂缝闭合 ... closed system 闭系统 closed type steam heating system 闭式蒸汽供热系统 closing up of cracks 裂缝闭合 ...
closing up of cracks相关短语
1、 closing g up of cracks 裂缝闭合