矮型信号机: dwarf signal基础: foundation; base; basis矮型信号机: dwarf signal (铁路列车用)矮型信号机透镜: dwarf signal lens高柱信号机基础: high signal mast foundation; high type signal foundation小型信号机: dwarf signal矮型幻灯信号机: ground position light signal矮型色灯信号机: ground colour light signal型信号: type b signalling信号机: annunciator; semaphore; teleseme典型信号: type signal开关型信号: on off type signals; on-off-type signals脉冲型信号: pulse type signal电动机基础: motor base (mb); motor foundation计算机基础: a03-basic computer application; basis of computer engineering, computer basis; computers for learning; fundamentals of computing; introduction to computer冷冻机基础: refrigerator foundation磨煤机基础: coal mill foundations微机基础: principles of microcomputers氧压机基础: oxygen compressor general钻机基础: rig foundation矮型调车信号: shunting dwarf矮型位灯信号: ground position light signal作出牌型信号: give count锤机基础格层: hammer foundation grill水冷柜机基础: chiller unit
