| 1. | Moreover, they are also quieter, as they are not driven by an airscrew .
此外，由于不用空气螺旋桨驱动，所以噪音也比较小。 |
| 2. | Specification for mahogany for use in airscrews
航空螺旋浆用桃花心木规范 |
| 3. | Airscrew balancing apparatus
螺旋桨平衡装置 |
| 4. | Airscrew reduction gear
螺旋桨减速齿轮 |
| 5. | Airscrew pitch measuring
螺旋桨距测量 |
| 6. | Ustable pitch airscrew
可调距螺旋桨 |
| 7. | Constant pitch airscrew
定距螺旋桨 |
| 8. | Constant speed airscrew
定速螺旋桨 |
| 9. | Variable pitch airscrew
变距螺旋桨 |
| 10. | Airscrew blade area
螺旋桨叶面积 |
