“nonmetallic ore for gemstone”的概念、定义、翻译、参考文献-科学参考

单词	nonmetallic ore for gemstone
释义	nonmetallic ore for gemstone Encyclopedia 理学非金属矿产资源释 nonmetallic ore for gemstone宝石原料用非金属矿经琢磨后能作为饰物的矿物。
随便看	compact dual compacted graphite cast iron compact element compact elliptical compact embedding compact extension compact extragalactic radio source compact family compact fiber compact flare compact fluorescent lamp compact foliation compact form compact galaxy compact galaxy nucleus compact grain compact group compact group of galaxies compact Hausdorff space compact heat exchanger compact homotopy class compact HⅡ region compactifiable compactification compactification operator

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