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
Abstrcat>This paper introduced a new design method of rotor teeth profile and star-wheel teeth profile enveloped with multi straight lines in a single screw compressor. 介绍了多直线包络的单螺杆压缩机螺杆齿面母线和星轮齿型面的设计方法。
Highly efficient and extremely reliable, Dunham-Bush screw compressors are often imitated, but never equaled. 顿汉布什螺杆压缩机以高效率和超高稳定性而著称于世，被许多厂家效仿，却无可比拟。
