double pile velveteen 双层丝绒

double-pile 双桩

Double Pile Delivery 收纸装置

double acting pile hammer 复动桩锤 ; 双动式打桩锤

construction of double pile pier 双桩桥墩施工

double-faced pile 双面绒

double woven pile fabric 双层织造长毛绒织物

double-sided loop pile fabric 双面毛圈起绒织物

double row pile 双排桩