您要查找的是不是：
- pressure rigid airship 压力硬式飞艇
- A rigid airship having a long cylindrical body supported by internal gas cells. 齐柏林飞艇一种由内部气囊支持着长圆筒机身的硬式飞艇
- Early in 1909 the sum of 35,000 pounds was authorized for the building of a rigid airship for the Navy. 一九0九年初，政府拨款三万五千英镑为海军建造一条硬式飞艇。
- A dirigible, or rigid airship, has a metal frame, these days usually part aluminum, part carbon fiber, covered with a synthetic canvas. 飞船（或硬式飞船）以金属为骨架，近期的骨架通常由铝和碳纤维组成，外覆一层合成帆布。
- rigid airship frame and sections thereof 飞船钢性框架及其部件
- Rigid airships were used during the 1930s to transport thousands of passengers until the Hindenburg disaster of 1937. 十九世纪30年代;硬式飞艇用于运送数以千计和旅客;直到1937年的兴登堡灾难。
- a rigid airship having a long cylindrical body supported by internal gas cells 齐柏林飞艇，一种由内部气囊支持着长圆筒机身的硬式飞艇
- The beer comes out of the barrel under pressure. 啤酒受到压力从桶中流出。
- Early in 1909 the sum of 35,000 pounds was authorized for the building of a rigid airship for the Navy 一九0九年初，政府拨款三万五千英镑为海军建造一条硬式飞艇。
- Our pressure vessel is licensed product. 我厂生产的压力容器是授权生产产品。
- Loss of pressure had not registered on the dials. 刻度盘未记录压力下降。
- Air pressure forces the water through the pipe. 空气压力使水通过管道。
- What's the atmospheric pressure today? 今天的气压怎么样？
- The water pressure may need adjusting. 水压可能需要调整。
- Pressure is force per unit area. 压力就是电单位面积上的力。
- He drop out because of the pressure. 由于校规很严，所以他退学了。
- It took a bit of pressure to make the lid close. 要稍按一下才能把盖子盖紧。
- It was done under the pressure of the necessity. 这件事是在迫切需要的情况下而做的。
- At high pressure dry ice will melt. 高压下干冰会溶化。
- The gas is stored under pressure in the tank. 该气体在压缩状态下贮存于罐中。
