“pitch opal”的概念、定义、翻译、参考文献-科学参考

单词	pitch opal
释义	pitch opal [`pich ´ō·pǝl] ^MINERALOGY A yellowish to brownish inferior quality of common opal displaying a luster resembling that of pitch.
随便看	electron magnetic moment electron mass electron metallography electron micrograph electron microprobe electron microscope electron mirror electron mobility electron multiplicity electron multiplier electron-multiplier phototube electron nuclear double resonance electron number electronographic tube electronography electronoluminescence electron optics electron orbit electron pair electron pair bond electron paramagnetic resonance electron paramagnetism electron-positron pair electron-positron storage ring electron probe

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