英语词汇lower-grade 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	lower-grade coal
释义	lower-grade coal 简明释义劣质煤网络释义 1 ?劣质煤 ... lower frequency noise 低频噪音，低频干扰 lower-grade coal 劣质煤 lower grid 下栅[格]板 ... 双语例句 1 The coal has lower metamorphic grade with high ash. 煤的变质程度低，灰分高。
随便看	single session concept single set single setting single setting method single set trigger single setup single-sex single sex single-sex college single sex college singleshaft single-shaft single shaft single shaft arrangement single-shaft arrangement single-shaft configuration single shaft configuration single shaft drawworks single shaft engine single-shaft engine single-shaft gas turbine single shaft gas turbine single shaft inertia shaker single shafting single-shaft mixer

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。