rare earth

rare earth英英释义
Noun
any element of the lanthanide series (atomic numbers 57 through 71)
rare earth例句
用作名词(n.)
The expected amount of hydrogen loss matches the net excess of oxidized material on Earth today.
据此估计氢的损失量，和今日地球上的氧化物净值吻合。
rare earth近义词
rare-earth element
lanthanoid
lanthanide
lanthanon