Synchronizer gear hub is made of PM, with more complex shapes and different thickness section.

同步器齿毂的材料为粉末冶金，形状比较复杂，而且截面的厚度不一样。

youdao

Also facilitating life on the road, the PM mixer section is protected by a tough carpet-covered surround.

也促进生活的道路上，下午混频器的部分保护一个艰难的地毯覆盖环绕。

youdao

Also facilitating life on the road, the PM mixer section is protected by a tough carpet-covered surround.

也促进生活的道路上，下午混频器的部分保护一个艰难的地毯覆盖环绕。

youdao