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1·In this paper, the acoustic simulation was applied to improve the noise performance of gearbox cover on the motorcycle of 125-C with the low vibro-acoustic structure design.

本文应用声学仿真的方法对125-C型摩托车变速箱端盖进行结构优化设计，达到降低表面辐射噪声的目的。

2·China heavy-duty automobile gearbox body, clutch shell, gearbox top cover, automobile engine organism, etc four. Offer service for one the second automobile Factory.

中重型汽车变速箱箱体，离合器壳体，上盖，发动机缸体等四大系列产品。主要为一、二汽提供配套服务。

3·The gearbox (1) provided with two power output shafts can drive two suits of flotation mechanisms simultaneously, realizing the cover coating of two salt ponds.

所述的变速箱(1)有两个动力输出轴，可同时带动两套浮卷机构，实现两个盐池的苫盖收放。