gear assembly meaning in Chinese

齿轮传动装置
齿轮传动总成
齿轮装置
齿轮组

Do i really need the left landing gear assembly
我真的需要左边起落架吗？
Driving gear assembly
驱动齿轮组件
No damage and leakage for gear assembly structure attachment and up - assembly
起落架组件结构，连接及上锁组件无损伤和渗漏现象。
The profile equation of whole profile meshing is worked out by the meshing theory , and the numerical calculation program of the new profile is accomplished . the 3d modeling of the gear rotor and the movement simulation of the gear assembly system are realized . the interference and sidegap of gear meshing are analysed by 3d modeling of the gear , so it can be judged that the gear profile is right whether or not before machining
运用齿轮啮合原理，推导出全封闭齿廓啮合型面的齿形方程，完成齿形相应的数值计算程序，并对齿轮转子进行三维实体造型及齿轮装配体运动仿真的研究；用齿轮三维造型来进行装配模拟并分析啮合副装配的干涉和侧隙，在加工前就能对齿轮齿廓形状的正确与否进行判断。