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lignites

lignites

lignites

lignites

1

SOLID MINERAL FUELS . SAMPLING METHODS FOR HARD COAL AND LIGNITES. METHODS TO DETECT THE EXISTENCE OF SYSTEMATIC ERRORS.

固体矿物燃料 .硬煤和褐煤取样方法 .系统误差的检查方法

3

SOLID MINERAL FUELS . SAMPLING METHOD FOR HARD COAL AND LIGNITES. SCIENTIFIC EXPLANATIONS.

固体矿物燃料 .硬煤和褐煤取样方法 .科学解释

4

Solid mineral fuels . Methods of sampling hard coals and lignites .

固体矿物燃料 .煤和硬褐煤取样方法

5

Brown coals and lignites; Principles of sampling; Part 2 : Sample preparation for determination of moisture content and for general analysis

褐煤 .取样原则 .第2 部分：供水分测定和一般分析用的样品制备

6

Brown coals and lignites; Determination of the yields of tar, water, gas and coke residue by low temperature distillation

褐煤 .用低温蒸溜法测定焦油、水、煤气和焦渣的产率

7

Brown coals and lignites; Principles of sampling; Part 1 : Sampling for determination of moisture content and for general analysis

褐煤 .取样原则 .第1 部分：供水分测定和一般分析用的取样

8

Brown coals and lignites; Method of extraction for the determination of sodium and potassium soluble in dilute hydrochloric acid

褐煤 .测定稀盐酸中可溶钠和钾的萃取方法

9

Brown coals and lignites; Determination of moisture content; Indirect gravimetric method

褐煤 .水分的测定 .间接重量法

10

Brown coals and lignites - Determination of true relative density and apparent relative density

褐煤 .实际相对密度和表面相对密度的测定

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