... 外层;外表面：external surface 外侧坡度：outer slope 外部装药爆破：mudcapping ...
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outer r slope 外侧坡度
outer zone of Wen'an slope 文安斜坡外带
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Its range of application is wide, Suitable for building add layer, outer wall keep warm, flat to change slope, old room person who transform project roofing especially.
其应用范围广，特别适用于楼房加层、外墙保温、屋面平改坡、旧房改造等工程。
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