C
擦窗机 gondola;
擦窗设备BMU (building maintenance unit)
擦窗设备公司 BMU supplier
擦窗机荷载 gondola load
擦窗设备荷载 BMU loads
擦窗器 window cleaner
材料 material
材料审查报告 materials testing report
采购 purchase;procure/procurement
采购订单 purchase order
采购活动 procurement activity
采光玻璃屋顶 skylight glass roof