例句與造句

1. Captive helicopters can be used for the same purposes as captive balloons.
2. 29-- U . S . tries to get captive helicopter pilot Bobby Hall out of North Korea.
3. However, it is possible to run captive helicopters electrically by running a cable inside the tether line holding the helicopter.
4. A "'captive helicopter "'is a helicopter which is tethered to the ground with a rope, as with a captive balloon.
5. At the end of the 1930s, the German company Telefunken tried to make a longwave transmission experiment with a captive helicopter driven with a three-phase, AC-power engine.
6. It's difficult to find captive helicopter in a sentence. 用captive helicopter造句挺難的
7. Because of electrostatic charges induced by earth's electric field, the fuses melted when the captive helicopter reached a height of 750 metres and the captive helicopter landed roughly.
8. Because of electrostatic charges induced by earth's electric field, the fuses melted when the captive helicopter reached a height of 750 metres and the captive helicopter landed roughly.
9. A primary advantage of captive helicopters is that they can be more accurately steered than captive balloons or kites in order to compensate for the influence of the wind.