| 1. | In one corner a ladder went up to an open trap door .
角落里有一道梯子，通往上面敞开的活板门。 |
| 2. | The bird is usually lowered through a trap door in the floor of the cabin after the takeoff .
飞行器通常都是在起飞以后通过座舱底部的一个活动门放下去的。 |
| 3. | Theatre technology , stage equipment - trap doors - general characteristics
剧院技术舞台装置.活板门.一般特征 |
| 4. | - two more cameras , pressure sensors - a iaser net over the trap door -
-两个监视器，压力感应器-一张激光感应网保护房顶活门 |
| 5. | Two more cameras , pressure sensors - - a iaser net over the trap door -
-两个监视器，压力感应器-一张激光感应网保护房顶活门 |
| 6. | Two more cameras , pressure sensors - - - a iaser net over the trap door - -
两个监视器，压力感应器-一张激光感应网保护房顶活门 |
| 7. | Built in about eight days , the house ended up with two stories , a trap door and two balconies
经过8天的时间，这座拥有一扇活动门、两座阳台的两层树上小屋便大功告成了。 |
| 8. | Terms for railway vehicle parts - windows , trap doors , ventilation of compartment - part 11 : windscreen cleaning equipment
铁路车辆零部件术语.车窗活门车厢通风设备.第11 |
| 9. | Hermione granger : it was standing on a trap door . it wasn ' t there by accident . it ' s guarding something
赫敏?格兰杰：它站在一扇活板门上。这代表它是有用处的。它在看守某个东西。 |
| 10. | Electric or electrically operated hoist . safety rules for the construction and installation of group iii hoists serving a higher level by the opening of a trap door
电或电控升降机.通过活板门口高空运货第三类升降机制造和安装安全性规则 |
