carbon are造句

At the moment oxides of metals such as zinc and copper seem to be the favourites, but tiny tubes made of carbon are also being explored.

carbon are造句

The secondary reactions between CO, CO_2 and Ca evolved at cathode and short circuit caused by the produced black carbon are the main…

The result shows that adsorption and desorption performance of Benzene vapour by activated carbon are related to the specific surface, hole volume, hole diameter and distribution of hole.

"The nodules of carbon are, in large part, what give ductile iron its exceptional ductility and shock resistance."