主要: main; chief; principal; majo ...干线: groundline; trunk line; main ...管路: pipeline; canal; channel主要干线管道: main trunk line主要干线: main artery; main trunk line; principal line主要干线公路: main truck highway; main trunk highway主要干线合同: main trunking contract主要干道: arterial; maintrunkroad; primary road; principal trunk主要干路: primary distributor road单向主要干道: one way arterial street; one-way arterial street主干线管系: main piping电线管路: raceway for wiring主要干路;市区干道: primary distributor road配电干线管道: distributor dump主要公路干线: major highway artery有内涂层干线管: internally coated line pipeacete chinensis (主要干制成虾皮): 毛虾干线: groundline; trunk line; main stem; main line; main circuit; main feed; trunk; artery 公路干线 arterial or main highway; 交通干线 main lines of communication; 干线道路 [土] arterial road; 干线电缆 trunk cable; main cable; 干线公路 arterial highway; 干线铁路 main line railway; 干线通信 trunk communication; 干线网 arterial grid正要干: on the point of线管: hasp; line pipe; spool管路: pipeline; canal; channel 铺设管路 lay pipe(lines)欧洲主要国际交通干线协定: european agreement on main international traffic arteries主要国际交通干线汽车流量普查: census of motor traffic on main international traffic arteries将要干某事: on one’s way to doing something就要干某事: on the way to doing