打开信号: opening signal管: pipe; tube放气活门打开信号管: bleed valve open signal tube弹舱门打开信号灯: bomb doors open light信号管: signal pipe关闭信号管: close signal tube红色信号管: red tube列车信号管: train signal pipe信号管雷管: signal tube detonator断开信号: cut off signal; trip signal松开信号: unlock signal雷达信号管制: radar blackout信号管道装置: signal pipe line信号管理控制: signal supervisory control信号管起爆器: signal tube starter电源断开信号灯: power-off light放气活门关闭信号管: bleed valve close signal tube直流发电机断开信号灯: dc generator off light指引地平仪断开信号旗: attitude indicator off flag自动驾驶仪断开信号灯: autopilot disengage light; autopilot of flight; autopilot offlight自动油门断开信号灯: autothrottle-off light打开: 1.(揭开; 拉开; 解开) open; unfold 打开包袱 untie a bundle; 打开盖子 take off the lid; 打开铁锁链 break open the iron shackles; 打开降落伞 slip parachute2.(接通电路) turn on; switch on:打开收音机[电灯]turn on the radio [light]3.(攻开) break through 打开一条出路 break through an encirclement or fight a way out4.(展开; 扩展) open up; spread 打开地图 spread out the map; 打开局面 open up a new prospect; 打开思路 broaden one's scope of mind; 打开眼界 widen one's horizon; 打开信号 opening signal公开信: open letter开信刀: letter opener李开信: li kaixin