For accelerating the step of domestic of the constant velocity universal joint, it is particularly important to improve its design method.
为了加快等速万向节国产化的步伐，改进其设计方法就显得尤为重要。
For accelerating the step of domestic of the constant velocity universal joint, it is particularly important to improve its design method.
为了加快等速万向节国产化的步伐，改进其设计方法就显得尤为重要。
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