single lock单厢船闸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-needle embroidery frame单针刺绣机single layer nerve basic network单层神经元网络single mode coherent light field单模光场single-story steel plane frame单层平面钢框架Single Needle Machine Belt Cover单针车万用皮带罩single-terminal-pair circuit二端网络电路single-level resonance formula单能级光振公式single-phase fluid loop system单相流体回路single circular cornering cutter单圆角铣刀Single Advanced Signal Processor单路高级信号处理机

1. The pointer of the low-pressure side has the form of a dial.
   低压端的指示器是一个表盘。
2. A light pointer is often useful with a slide projector.
   光指示器经常与幻灯片放映机一起使用。