例句與造句

1. Tip jets powered by a remote compressor are referred to as cold tip jets, while those powered by combustion exhaust are referred to as hot tip jets.
2. Tip jets powered by a remote compressor are referred to as cold tip jets, while those powered by combustion exhaust are referred to as hot tip jets.
3. An example of a cold jet helicopter is the Sud-Ouest Djinn, and an example of the hot tip jet helicopter is the YH-32 Hornet.
4. Except for tip jets driven by unburnt compressed air, very high noise levels is the single most important reason why tip jet powered rotors have not gained wide acceptance.
5. Except for tip jets driven by unburnt compressed air, very high noise levels is the single most important reason why tip jet powered rotors have not gained wide acceptance.
6. It's difficult to find tip jet in a sentence. 用tip jet造句挺難的
7. The French Sud-Ouest Djinn used unburnt compressed air to drive the rotor, which minimized noise and helped it become the only tip jet driven rotor helicopter to enter production.
8. An edition of " Popular Science " magazine in 1969 featured a backpack helicopter that used small jet engines in a tip jet configuration instead of contra-rotating rotors.
9. The termination has been attributed to the type failing to attract any commercial orders; this was in part due to concerns over the high levels of rotor tip jet noise generated inflight.
10. The first tip jet-powered helicopter was the Fairey Aviation company of the United Kingdom which used them in their Fairey Jet Gyrodyne and Fairey Rotodyne aircraft first flying in 1954 and 1957 respectively.
11. Ramjets also have few moving parts, but they only work at high speed meaning that their use is restricted to tip jet helicopters and high speed aircraft such as the Lockheed SR-71 Blackbird.
12. If the helicopter's engine fails, the tip jets on the rotor increase the moment of inertia, hence permitting it to store energy, which makes performing a successful autorotation landing somewhat easier.
13. The "'Fiat 4700 "'was an Italian turbo-generator developed by Fiat Aviazione under contract to the Italian Defence Ministry and used to power the experimental Fiat 7002 tip jet helicopter.
14. In the late 1950s, Kaman built the Kaman K-17, an experimental tip jet powered helicopter using a Blackburn Aircraft-built Turbomeca Turmo turbine powering a compressor delivering cold air to the rotor tips.
15. Gary Hudson's and Bevin McKinney's initial concept was to merge a launch vehicle with a helicopter : spinning rotor blades, powered by tip jets, would lift the vehicle in the earliest stage of launch.
16. However, the tip jet also typically generates significant extra air drag, which demands a higher sink rate and means that a very sudden transition to the landing flare must occur for survival, with little room for error.
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