英语词汇“楼板、墙壁开口及非居住区的楼梯、围栏类的安全要求”的翻译、意思、用法、释义-英汉汉英双解词典

词汇	楼板、墙壁开口及非居住区的楼梯、围栏类的安全要求
释义	楼板、墙壁开口及非居住区的楼梯、围栏类的安全要求 Safety requirements for workplace floor and wall openings,stairs and railing systems
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