single jet单喷口singleadj.单一的；单个的；特指某人或某物；单身的；单人的；单程的n.单程票；单曲；单人房间；单身者；<美>一元纸币；(网球)单打比赛；(板球)一分打；(棒球)一垒打v.挑选(一个)single reasonable check单次合理检验single-unit container一次用容器； 单元容器single-tube telescope单筒望远镜single region execution单区段执行single open end spanner单头开口扳手single suction impeller单吸叶轮single screw compressor单螺杆压缩机single-skin steel dam单层钢面板坝single-inlet impeller单面进气叶轮single knitting machine单面大圆机