a captive balloon造句

例句与造句

1. Captive helicopters can be used for the same purposes as captive balloons.
2. Tobias contained a captive balloon and Toni was in the process of being dismantled.
3. For the loss of one man, the British destroyed two German zeppelins, L . 54 and L . 60 and a captive balloon.
4. A "'captive helicopter "'is a helicopter which is tethered to the ground with a rope, as with a captive balloon.
5. The station came into service on 16 February 1941 and during May of that year a number of tests were carried out using a captive balloon to measure the performance of the horizontal dipole arrays and to determine the effect of the contour of the ground close to the station on their vertical radiation pattern.
6. It's difficult to find a captive balloon in a sentence. 用a captive balloon造句挺难的
7. Named by the United Kingdom Antarctic Place-Names Committee ( UK-APC ) in 1960 for Gaspard F . Tournachon ( 1820 1910 ), known professionally as Nadar, French portrait photographer and aeronaut who took the first air photos from a captive balloon in 1858 and suggested their use for mapmaking.