Trunkin特伦金trunkn.树干；(汽车后部)行李箱；大箱子；象鼻；躯干(复)trunks: 男用运动裤.trunk line encryption干线加密trunk block connector干线阻塞连接器trunk sewerage scheme污水干渠系统trunk cluster control中继结群控制trunk bending forward体前屈trunk subgroup number中继线分组号trunk-shaped girder箱形吊车梁trunk connecting unit干线连接单元trunk congestion lamp中继线占用指示灯trunk circuit network长途电路网