英语词汇coal classification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

网络释义

1
?煤的分类
... coal chemical 煤化学制品 coal classification 煤的分类 coal combustible 煤的可燃成分 ...

短语

1
Chinese Coal Classification
中国煤炭分类
2
coal classification system
煤炭分类法 ; 煤分类系统
3
ussr coal classification
苏联煤炭分类

双语例句

1
In China national standards of coal classification, there only no type division of natural coke so far.
目前中国煤炭分类国家标准中，唯独对天然焦没有明确的分类指标。
2
The coal classification distribution of coal bearing strata in the Up Permian Series of Guizhou has an X type feature in plan.
贵州上二叠统含煤岩系煤级分布在平面上呈现X型分布特征，即具有东、西侧变质低，中部变质高的特点，分布规律明显。
3
Combine top-coal classification with roof classification for the first time, which make up the inadequate of former classification program.
首次将顶煤的分类与直接顶、老顶的分类结果相结合，弥补了原有顶板分类方案不适合放顶煤采场的不足。

单词	coal classification
释义	coal classification 简明释义煤分类，煤炭分类网络释义 1 ?煤的分类 ... coal chemical 煤化学制品 coal classification 煤的分类 coal combustible 煤的可燃成分 ... 短语 1 Chinese Coal Classification 中国煤炭分类 2 coal classification system 煤炭分类法 ; 煤分类系统 3 ussr coal classification 苏联煤炭分类双语例句 1 In China national standards of coal classification, there only no type division of natural coke so far. 目前中国煤炭分类国家标准中，唯独对天然焦没有明确的分类指标。 2 The coal classification distribution of coal bearing strata in the Up Permian Series of Guizhou has an X type feature in plan. 贵州上二叠统含煤岩系煤级分布在平面上呈现X型分布特征，即具有东、西侧变质低，中部变质高的特点，分布规律明显。 3 Combine top-coal classification with roof classification for the first time, which make up the inadequate of former classification program. 首次将顶煤的分类与直接顶、老顶的分类结果相结合，弥补了原有顶板分类方案不适合放顶煤采场的不足。
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