英语词汇reference coal sample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	reference coal sample
释义	reference coal sample 简明释义标准煤样网络释义 1 ?标准煤样 5.28 标准煤样 ( reference coal sample ) 经过精确实验已确定一个或多个特性量值的，且可直接用于校核的标准物质。
随便看	steamable steam accumulation steam accumulator steam accumulator steamaccumulator steam accumulators steamactivated steam activation steam admission steam admission lead steam admission nozzle governing steam admission side steam-admission side steam-admission slit steam admission throttle governing steam admission valve steam admission valve steam admitted above the piston steam admitted below the piston steam aerosol generator steam age steam age steam ager steam aging steam-agitated autoclave

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。