This analyzes the installation defects of acetylene pipelines inside and outside the room, and advances some preventing measures.
分析了室内外乙炔管道的安装缺陷，提出了具体的防治措施。
This analyzes the installation defects of acetylene pipelines inside and outside the room, and advances some preventing measures.
分析了室内外乙炔管道的安装缺陷，提出了具体的防治措施。
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