single adj.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；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)
双语例句
A laboratory evaluation for detecting moisture in monolayer roof specimens without thermal insulation is presented by infrared thermography. 摘要模拟了无保温层的单层屋面渗漏情况，探索了其红外热像检测方法。
