The Encyclopedia Americana, Volume 7Grolier, 1985 - Encyclopedias and dictionaries |
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Page 136
... tons ) Mapped and Estimated explored total1 Soviet Union North America 5,900 8,620 1,560 4,080 United States 1,420 ... tons are measured resources . Of the 8,610 billion ton total given in the preceding table , only about 4,305 billion ...
... tons ) Mapped and Estimated explored total1 Soviet Union North America 5,900 8,620 1,560 4,080 United States 1,420 ... tons are measured resources . Of the 8,610 billion ton total given in the preceding table , only about 4,305 billion ...
Page 142
... tons ( about 180 metric tons ) in single loads . A similar large - scale innovation was the unitized train with interlinked 100 - ton cars traveling at passenger train speeds without stops . The unitized train enables steam generating ...
... tons ( about 180 metric tons ) in single loads . A similar large - scale innovation was the unitized train with interlinked 100 - ton cars traveling at passenger train speeds without stops . The unitized train enables steam generating ...
Page 215
... ton ( 0.9 metric ton ) of coal produces an average yield of about 0.7 ton ( 0.63 metric ton ) of coke ; 11,500 cubic feet ... tons of charge and keeps it permeable ; as coke burns , it supplies the heat necessary for the reactions in the ...
... ton ( 0.9 metric ton ) of coal produces an average yield of about 0.7 ton ( 0.63 metric ton ) of coke ; 11,500 cubic feet ... tons of charge and keeps it permeable ; as coke burns , it supplies the heat necessary for the reactions in the ...
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