聚环氧琥珀酸(PESA)是一种新型的可生物降解的水处理化学品。

Polyepoxysuccinic acid (PESA) is a kind new biodegradable water treatment agent.

youdao

聚环氧琥珀酸(PESA)是一种新型的可生物降解的水处理化学品。

Polyepoxysuccinic acid (PESA) is a kind new biodegradable water treatment agent.

youdao