single taxn.单一税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-transaction access单一事务存取Single nucleid polymorphism单核苷酸基因多态性single point mooring system单点系泊系统single-species population单峰驼single-shaft-screw pump单轴螺旋泵single-sludge SBR process单污泥SBR工艺single stage rocket vehicle单级火箭single plase fault earthing单相故障接地single ended cord-circuit单端塞绳电路single-chain-type bench单链拉拔机