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单词 multiple rotor
例句
原声例句
经济学人(汇总)

They once cost millions, and had limited uses, until researchers worked out how to make small aircraft hover using multiple co-ordinated rotors.

曾经它们的成本为是百万,且使用有限,直到研究人员研究出了如何使用多协调转子使小型飞机悬停。

未来世界建设

These aren't just fancy helicopters - they're  much quieter than your average chopper, multiple rotors make them more manoeuvrable  and safer and because they're electrified, they're cleaner and cheaper to run too.

这些不仅仅是花哨的直升机——它们比普通的直升机安静得多,多个旋翼使它们更灵活、更安全,而且因为它们是电气化的,所以它们更清洁,运行起来也更便宜。

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