英语词汇coal series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

短语

1
The synthesis of detergent-used 4A zeolite from coal-series Kaolin which was treated with sulfuric acid firstly was studied.
研究了以煤系高岭土为原料，经硫酸处理后采用水热转化法合成洗涤剂用4A沸石的方法。
2
The Late Mesozoic characterized by higher temperature gradient is main period of gas generation and migration of Paleozoic coal series and carbonates.
中生代晚期地温梯度高，是古生界碳酸盐岩及煤系地层的主要生气期和运移期。
3
The coal series origin theory and the carbonate origin theory both provide abundant geochemical data, but there are much doubt about them.
煤系成因说、碳酸盐岩成因说都提供了丰富的地球化学资料，但也留下不少的疑问。

单词	coal series
释义	coal series 简明释义煤系网络释义 1 ?煤系 ... 煤层〔炭层〕 coal-seam 煤系 coal-series 接合冲积扇 coalescing alluvial fan ... 短语 1 coal series kaolinite 煤系高岭土 2 coal series 煤化系列 3 coal series gas 煤系气双语例句 1 The synthesis of detergent-used 4A zeolite from coal-series Kaolin which was treated with sulfuric acid firstly was studied. 研究了以煤系高岭土为原料，经硫酸处理后采用水热转化法合成洗涤剂用4A沸石的方法。 2 The Late Mesozoic characterized by higher temperature gradient is main period of gas generation and migration of Paleozoic coal series and carbonates. 中生代晚期地温梯度高，是古生界碳酸盐岩及煤系地层的主要生气期和运移期。 3 The coal series origin theory and the carbonate origin theory both provide abundant geochemical data, but there are much doubt about them. 煤系成因说、碳酸盐岩成因说都提供了丰富的地球化学资料，但也留下不少的疑问。
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