英语词汇permo carboniferous system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

1
Fractal theory was used in this paper, and fractal feature of grain distribution of sandstone in coal-bearing strata in Permo Carboniferous System was studied.
应用分形的思路和方法研究了石炭-二叠系含煤地层砂岩粒度分布的分形特征。
2
The rock samples of the Permo-Carboniferous system in Hebi Area were collected and an ICP-MS method was used to analyze the rare earth elements of the samples systematically.
采集了鹤壁地区石炭-二叠系岩石样品，采用电感耦合等离子质谱技术对样品进行了系统的稀土元素测试分析。

单词	permo carboniferous system
释义	permo carboniferous system 简明释义石炭二迭系网络释义短语 1 Permo-carboniferous system 石炭二叠系 ; 石炭双语例句 1 Fractal theory was used in this paper, and fractal feature of grain distribution of sandstone in coal-bearing strata in Permo Carboniferous System was studied. 应用分形的思路和方法研究了石炭-二叠系含煤地层砂岩粒度分布的分形特征。 2 The rock samples of the Permo-Carboniferous system in Hebi Area were collected and an ICP-MS method was used to analyze the rare earth elements of the samples systematically. 采集了鹤壁地区石炭-二叠系岩石样品，采用电感耦合等离子质谱技术对样品进行了系统的稀土元素测试分析。
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