再次在这里，产量低；高操作温度和大量的催化剂需要。

Again here, yield is low; high operating temperature and large amount of catalyst are needed.

youdao

具有成本低、产量高、质量好的优点。

The advantages are low cost, high yield and good quality.

youdao

具有成本低、产量高、质量好的优点。

The advantages are low cost, high yield and good quality.

youdao