two point suspension scaffold的意思|示意
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两点悬挂式脚手架
two point suspension scaffold的网络常见释义
两点悬挂架空脚手板 ... single-point adjustable suspension scaffold 单点悬吊可调整的脚手架 two point suspension scaffold 两点悬挂架空脚手板 single-point suspension 单点悬挂装置 ...