... shrinkproofing防缩 shut-off nozzles停闭喷咀 shutter快门光闸 ...
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shut-off nozzles 停闭喷咀
off nozzles
从喷嘴
以上为机器翻译结果，长、整句建议使用 人工翻译 。
The engines would have variable nozzles, which would be fully opened on take-off and landing, so that the exhaust would be slow and relatively quiet, and narrowed when the aircraft was cruising, providing the necessary speed.
ECONOMIST: Green aircraft
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