同时精绵的长度和强力也有所增加，从而提高了经济效益。

The length and strength of the drafts is also increased, hence enhancing the economic efficiency.

youdao

同时精绵的长度和强力也有所增加，从而提高了经济效益。

The length and strength of the drafts is also increased, hence enhancing the economic efficiency.

youdao