single cog单面齿
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-entry point单入口点
single-lever brake单杆闸
single acting engine单作用发动机,单向酌发动机,单动机
Single cropping rice单季稻
single line of rails单线铁路
single machine cycle单机器周期
single-doped laser单掺杂激光器
single-mesh filter单网孔滤波器
single reinforcement单筋
single track vehicle单轨迹车辆