三位: three's place; three-positio ...式: type; style信号: signal; semaphore; gun二位式信号: two-position signal双位式信号机: two position signal; two-position signal三位式: three position三位式号志: three position signal三位式键: three position key三位式色灯号志: three position color light signal反式信号: upside-down signal复式信号: multiple signal阶式信号: ste ignal; stesignal联动式信号: coordinated signal双线式信号: double wire signal星式信号弹: star flare选路式信号: route signalling三位显示信号: three aspect signal按钮式信号楼: push button interlocking box; push button signal box摆臂式信号机: semaphores集中式信号器: integral annunciator全车动式信号: full traffic-actuated signal手枪式信号灯: biscuit gun速差式信号法: speed signalling维利式信号枪: very's pistol旋转式信号灯: rotating beacon; rotating light
