字词 | 镧 |
释义 | ㄌㄢ一种金属元素,符号 La,灰白色,有延展性,在空气中燃烧发光。可制合金,又可做催化剂 lanthanum, a greyish-white soft malleable metallic element that gives off light when burning in the air, and can be used in alloys and as a catalyst; symbol: La |
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