英语词汇“certified reference coal, reference coal sample”的意思、用法、释义、翻译、读音、例句、短语、词组-英汉翻译词典

单词	certified reference coal, reference coal sample
释义	certified reference coal, reference coal sample 标准煤样; 具有高度均匀性、良好稳定性和准确量值的煤样，主要用于校正测定仪器，评价分析试验方法和确定煤的特性量值。
随便看	optical designator optical designer optical design techniques optical detection optical detection electron spin resonance (odesr) optical detector optical detector of fire smoke optical detector technology optical determination optical deviation optical device optical devices optical diagnosis optical diagnostic equipment optical diagnostics optical, diaphragm optical dichoism optical dichroism optical dielectric constant optical diff optical differential mode attenuation optical differential rectify optical diffraction optical diffraction gratings optical, diffraction grating system

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