增加托架滚轮纵滚轮的数量，进一步提高了抗冲击能力。

Responding to increase the number of vertical rollers wheel brackets, further improve the shock resistance capability.

youdao

增加托架滚轮纵滚轮的数量，进一步提高了抗冲击能力。

Responding to increase the number of vertical rollers wheel brackets, further improve the shock resistance capability.

youdao