例句 /

A mineral form of molybdenum sulfide, MoS2, that is the principal ore of molybdenum.

A mineral form of molybdenum sulfide, MoS2, that is the principal ore of molybdenum.

辉钼矿硫化钼的一种矿物形式,分子式为MoS2,它是钼的主要矿石