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China kicks off air defense drills.
中国宣布开始新一轮军事演习。
youdao
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This article analyses the construction and working principle of cutting-off air brake system.
本文分析了农用挂车断气制动系统的结构和工作原理。
youdao
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This article analyses the construction and working principle of cutting-off air brake system.
本文分析了农用挂车断气制动系统的结构和工作原理。
youdao