民用直升飞机
Civil helicopter
以上为机器翻译结果，长、整句建议使用 人工翻译 。
这一种发动机仅仅要求用于中国民用直升飞机。
This engine is only supposed to be used for Chinese civilian helicopters.
youdao
Z - 9在中国可能是制造的直升飞机中最多的，超过200架交付给军用和民用客户。
The Z-9 is possibly the most produced helicopter in China, with over 200 machines delivered to both military and civilian customers.
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