a yellow radioactive mineral; an ore of uranium and radium and vanadium
例句
a soft silvery white toxic metallic element used in steel alloys; it occurs in several complex minerals including carnotite and vanadinite. 一种软质的银白色有毒金属元素,用于钢合金,存在于许多复合矿物中,包括钒钾铀矿和钒铅矿。
a soft silvery white toxic metallic element used in steel alloys; it occurs in several complex minerals including carnotite and vanadinite 一种软质的银白色有毒金属元素,用于钢合金,存在于许多复合矿物中,包括钒钾铀矿和钒铅矿