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单词 mohs scale
释义

WordReference Random House Unabridged Dictionary of American English © 2024
Mohs scale′  (mōz),USA pronunciation 
  1. Mineralogya scale of hardness used in mineralogy. Its degrees, in increasing hardness, are: talc 1;
    gypsum 2;
    calcite 3;
    fluorite 4;
    apatite 5;
    feldspar 6;
    quartz 7;
    topaz 8;
    sapphire 9;
    diamond 10. Abbr.: MSH
  • named after French. Mohs (1773–1839), German mineralogist 1875–80

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