英语词汇certified reference coal怎么读，是什么意思，单词翻译、读音、固定搭配用法和短语词组及例句-英汉双解词典

单词	certified reference coal
释义	certified reference coal 简明释义标准煤样网络释义短语 1 Certified reference-coal 标准煤样 2 power coal certified reference material 动力煤标准物质 3 certified reference-material of coal 有证煤标准物质
随便看	mechanical pulping mechanical pulping process mechanical pulsing mechanical pulverization mechanical pump mechanical purchase mechanical purpura mechanical pusher mechanical pusher ram mechanical pyrite burner mechanical pyrometer mechanicalpyrometer mechanical Q-switch mechanical quadrature mechanical quality factor mechanical quantity mechanical quantity sensor mechanical quantity transducer mechanical rabble mechanical rabbling mechanical radial mechanical radiator mechanical rake mechanical rake mechanical raking system

英汉双解词典包含3185865条英汉词条，基本涵盖了全部常用单词的翻译及用法，是英语学习的有利工具。