| 单词 | lighter-than-air craft |
| 例句 | Helium is used for filling balloons and lighter-than-air craft because it does not burn, making it safer to use than hydrogen. Chemistry 2019-02-14T00:00:00Z The Naval effort began as an exercise to prove the all-weather capabilities of lighter-than-air craft, part of an ongoing operation code named Meteor. York man piloted the longest nonstop blimp flight ever 2018-03-18T04:00:00Z Known as the Joint Land Attack Cruise Missile Defense Elevated Netted Sensor System, or JLENS, the blimp is technically an aerostat -- a term for a lighter-than-air craft that is tethered to the ground. The military lost control of a giant, unmanned surveillance blimp 2015-10-28T04:00:00Z A brief lesson in balloon lingo: The balloons Wyoming Balloon Company flies are technically called “lighter-than-air craft.” Sunrise connoisseurs: Balloon chasers enjoy morning work 2015-07-02T04:00:00Z Dominick, however, wished more than I did to see his lighter-than-air craft in all its glory. Life's Minor Collisions 2011-11-03T02:00:17.547Z That part of an aviator’s training is usually confined to those who specialize in lighter-than-air craft, and Bill was a heavier-than-air pilot. Bill Bolton?Flying Midshipman 2011-04-14T02:00:39.800Z And so completely was his personality interwoven with the creation of these aerial giants that throughout the world all dirigible lighter-than-air craft are looked upon as the noted Zeppelins, and are referred to as such. Zeppelin The Story of a Great Achievement Mead’s prophesy was accurate except for his discounting the diesel’s role in lighter-than-air craft. The First Airplane Diesel Engine: Packard Model DR-980 of 1928 The lighter-than-air craft, which belonged first to the army and then to the navy, were a valuable link between the two wings. The War in the Air; Vol. 1 The Part played in the Great War by the Royal Air Force I should expect its first really practical installation to be in lighter-than-air craft.” The First Airplane Diesel Engine: Packard Model DR-980 of 1928 In fairness to the Beardmore, it was the only one of the three engines designed for airship use, and part of its heaviness was due to the special requirements of lighter-than-air craft. The First Airplane Diesel Engine: Packard Model DR-980 of 1928 |
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