I originally had never processed stainless steel cone tube in China but also without precedent.

我公司原来从没加工过不锈钢锥形钢管，在国内也没有先例。

youdao

About 50% of raw coal is processed in this method in China.

我国目前入洗原煤的50%左右是用跳汰机分选的。

youdao

About 50% of raw coal is processed in this method in China.

我国目前入洗原煤的50%左右是用跳汰机分选的。

youdao