This shaft have overcome the problems which a single air sac of a traditional one existence.

这种轴克服了传统气胀轴单一气囊所存在的问题。

youdao

This shaft have overcome the problems which a single air sac of a traditional one existence.

这种轴克服了传统气胀轴单一气囊所存在的问题。

youdao