“gratonite”的概念、定义、翻译、参考文献-科学参考

单词	gratonite
释义	gratonite [`grat·ǝn´īt] ^MINERALOGY Pb₉As₄S₁₅ A mineral composed of lead arsenic sulfide, occurring in rhombohedral crystals.
随便看	echo check echo contour echoencephalograph echo frequency echogram echograph echo intensity echolalia echolic echo location echo matching echophrasia echoplex technique echo power echopraxia echo pulse echo ranging echo-ranging sonar echo recognition echo repeater echo signal echosonogram echo sounder echo sounding echo-splitting radar

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