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GB/T 19559-2021
Method of determining coalbed methane content
煤层气含量测定方法 - 中英文版
GB/T 28753-2012
Determining of coalbed gas content - Heating desorption
煤层气含量测定 加温解吸法 - 中英文版
GB/T 23250-2009
The direct method of determining coalbed gas content in the mine
煤层瓦斯含量井下直接测定方法 - 中英文版
GB/T 19559-2008
Method of determining coalbed gas content
煤层气含量测定方法 - 中英文版

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