1 4毫米锁闭 check 4mm opening of a switch point 2 矮型信号机 dwarf signal 3 安全电路 vital circuit 4 安全接点 safety contact 5 按钮 push-in button 6 按钮表示 button indication 7 半自动闭塞机 semi-automatic block machine 8 半自动闭塞联系电路 liaison circuit with semi-automatic blocks 9 半自动化驼峰系统 semi-automatic hump yard system 10 保护区段 overlap protection block section 11 备电源 stand-by power source 12 被控点 controlled point 13 闭路式轨道电路 clos..

语必须脱口而出的经典句子2010-01-29 14:12 | (分类:英语) The answer is zero! 白忙了! The dice is cast! 已成定局了! The same as usual! 一如既往! The walls have ears! 隔墙有耳! There you go again! 你又来了! Time is running out! 没有时间了! We better get going! 最好马上就走! Well discuss it later! 回头再说吧! Well find out shortly! 我们很快就知道了! We are all for it! 我们全都赞成! We've been expecting you! 我们正等着你呢! What a good deal! 真便宜! What a let down! 真令人失望! Wh..