炭的

Biological powdered activated carbon enhanced the growth of nitrifier by absorbed toxic or inhibitory substance.

生物活炭吸附了对硝化菌产生毒和物质、强化了硝化菌在炭表面生长。

Carburant Carburant is a appellative of every kind of additive carbon materials that are used to smelt steel,iron products.

増碳剂 冶各种钢铁产品増炭材料通称。