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t212

t212t212
  1. The coal ash content is tested in accordance with the national standard GB / T212 , and the uncertainty of the testing result is evaluated and described based on JJG1059 .

    依据国家标准GB/T212对煤炭的灰分进行测定,并依据JJG1059对测定结果的不确定度进行了评定和表述。