collapse of roof的意思|示意
美 / /
英 / /
顶板崩落
collapse of roof的网络常见释义
顶板崩落 ... colemanite 硬硼钙石 collapse of roof 顶板崩落 collapse 崩落 ...
collapse of roof相关短语
1、 collapse of furnace's roof 炉顶坍塌