Examine roughing-in for electrical power systems to verify actual locations of wiring connections.
检查电力系统的配管，核实线路连接的实际位置。
B. Examine roughing-in for electrical power systems to verify actual locations of wiring connections before electrified door hardware installation.
检查电力系统的粗加工，从而在电气化门用五金安装之前，验证布线连接的实际位置。
B. Examine roughing-in for electrical power systems to verify actual locations of wiring connections before electrified door hardware installation.
检查电力系统的粗加工，从而在电气化门用五金安装之前，验证布线连接的实际位置。
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