“emery”的概念、定义、翻译、参考文献-科学参考

单词	emery
释义	emery [`em·ǝ·rē] ^MATERIALS An abrasive which is composed of pulverized, impure corundum; used in polishing and grinding. ^MINERALOGY A fine, granular, gray-black, impure variety of corundum containing iron oxides, either hematite or magnetite; occurs as masses in limestone and as segregations in igneous rock.
随便看	hard pad hard palate hardpan hard paste porcelain hard patch hard porcelain hard radiation hard return hard rime hard rock hard-rock driller hard-rock mine hard-rock miner hard-rock tunnel boring hard rot hard rubber hard-sectored disk hard silk hard site hard solder hard-solder hard-sphere collision theory hardstand hard superconductor hard-surface

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