| 1. | Is it because water absorbs more light than air
是因为水比空气吸收较多光线？ |
| 2. | A balloon rises because it is lighter than air
气球上升是因为比空气轻。 |
| 3. | Lighter than air , a song or so it seems
看似一首歌，或轻甚空气。 |
| 4. | Lt ' s 1 2 times lighter than air . you smear it all over your body . .
它比空气轻12倍.你把它涂抹在全身. . |
| 5. | Lt ' s 1 2 times lighter than air . you smear it all over your body
它的重量只是空气的1 12 ，你把全身抹上它 |
| 6. | Lt ' s 1 2 times lighter than air . you smear it all over your body . .
它的重量只是空气的1 / 12 ，你把全身抹上它. . |
| 7. | Helium is also lighter than air , but it costs a lot of money . so balloons were ( and are ) usually filled with hydrogen
氦也是一种比空气轻的气体，但是它太昂贵，因此气球通常都是装满氢气的。 |
| 8. | An airship is a lighter than air aircraft . it has twin engines and uses " helium " , a non - flammable gas , as a lifting gas which is contained in a large envelope
飞船是较空气为轻的飞行器，置有两个发动机，并依靠注入于大型气囊的不燃气体氦推动其上升。 |
| 9. | Each year , using readings and other information gathered about " lighter than air " ( lta ) design , the students build and race blimps as a small group project
每年利用搜集到的有关比空气轻（ lta ）飞行器设计读物和其他信息，学生须完成小组项目：制作和竞飞软式小型飞机。 |
| 10. | In the case of a civil aircraft lighter than air , the expression in flight relates to the period from the moment when it becomes detached from the surface until it becomes again attached thereto
就轻于空气的民用航空器而言，飞行中是指自其离开地面时起至其重新着地时止。 |
