single map单张地图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-phase to ground fault单相接地故障single-phase autotransformer单相自耦变压器single chain variable fragment单链可变片段Single Hazardous Input Programsingle box girder gantry crane箱形单梁龙门起重机single cantilever gantry crane单悬臂龙门起重机single cell gel electroporesis单细胞凝胶电泳single spindle automatic lathe单轴自动车床single-value query structure单值查询表single search engine selection成员选择