Science: v.1-v.219Moses King, 1968 |
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Стр. 858
... present , and projected [ From Hub- bert ( 1 ) ] least 30 years , it can be seen that new energy sources will not be providing power in significant quantities within the next half century . However , the search for alternative energy ...
... present , and projected [ From Hub- bert ( 1 ) ] least 30 years , it can be seen that new energy sources will not be providing power in significant quantities within the next half century . However , the search for alternative energy ...
Стр. 926
... present - day mantle systems generated by the 2.0 billion - year event . For a first - stage μ value of 9.0 , the ... present ( Pb20 % ) total ( Pb207 ) radiogenic ( U236 ) present - ( Pb200 ) primordial ( U238 ) present ( 1 ) - ( Pb207 ) ...
... present - day mantle systems generated by the 2.0 billion - year event . For a first - stage μ value of 9.0 , the ... present ( Pb20 % ) total ( Pb207 ) radiogenic ( U236 ) present - ( Pb200 ) primordial ( U238 ) present ( 1 ) - ( Pb207 ) ...
Стр. 1174
... present facts and statistics indicating the magnitude of the effect . There will follow a panel discussion involving four individuals who will present ideas on why special cate- gories of individuals — nonscience students , women , and ...
... present facts and statistics indicating the magnitude of the effect . There will follow a panel discussion involving four individuals who will present ideas on why special cate- gories of individuals — nonscience students , women , and ...
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