公司有自主研发材料的能力，开发出符合不同工矿条件下的斗齿。

We are also capable of inventing materials for different work and digging conditions.

youdao

公司有自主研发材料的能力，开发出符合不同工矿条件下的斗齿。

We are also capable of inventing materials for different work and digging conditions.

youdao