炭的

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

物活性炭吸硝化菌产毒性和抑制的物质、强化硝化菌在炭表面的长。

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的通称。