机械传动系统中广泛使用齿轮变速装置。
Speed change gears is widely used in mechanical transmission system.
船用齿轮传动系统是船舶动力装置的重要组成部分，分析其系统力学特征相当重要。
It is very important to analysis mechanics character of Marine gear transmission system which is an important part of Marine power equipment.
船用齿轮传动系统是船舶动力装置的重要组成部分，分析其系统力学特征相当重要。
It is very important to analysis mechanics character of Marine gear transmission system which is an important part of Marine power equipment.
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