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焦化二甲苯
Coke xylene
价格：￥0.00
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焦化甲苯
Coke toluene
价格：￥0.00
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焦化苯
Coke benzene
价格：￥0.00
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焦化产品蒸馏试验的气压补正方法
Correction of atmospheric pressure for distillation test of products of coal carbonization
价格：￥0.00
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苯类产品中性试验
Test for neutrality of benzole products
价格：￥0.00
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苯类产品溴价的测定
Determination of the bromine valence for benzene-homologue products
价格：￥0.00
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