运行实践证明，铝钙双碱法比钠钙双碱法更顺行。

It has proved by practice that Al-Ca double alkali method is more direct than Na-Ca double alkali method.

youdao

运行实践证明，铝钙双碱法比钠钙双碱法更顺行。

It has proved by practice that Al-Ca double alkali method is more direct than Na-Ca double alkali method.

youdao