The New Encyclopædia Britannica in 30 Volumes: Macropædia : Knowledge in Depth. - 19 Bd, Volumes 1-19Encyclopædia Britannica, 1974 |
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Page 187
... chemical . material is the propylene derivative acrylonitrile ( see also It is important to differentiate between the current FIBRES , MAN - MADE ) . practices of the U.S. and most of the rest of the world in By - products . Petroleum ...
... chemical . material is the propylene derivative acrylonitrile ( see also It is important to differentiate between the current FIBRES , MAN - MADE ) . practices of the U.S. and most of the rest of the world in By - products . Petroleum ...
Page 388
... chemical knowledge . Chemists tended to build detailed systems , " chemical philosophies , ” attempting to explain the entire universe in chemical terms . Most chemists accepted the traditional four elements ( air , earth , water , fire ) ...
... chemical knowledge . Chemists tended to build detailed systems , " chemical philosophies , ” attempting to explain the entire universe in chemical terms . Most chemists accepted the traditional four elements ( air , earth , water , fire ) ...
Page 976
... chemical reac- High pressures may produce a number of effects on both tions that constitute the metabolism of living things . external and internal chemical environments of cells , These reactions are influenced by both temperature and ...
... chemical reac- High pressures may produce a number of effects on both tions that constitute the metabolism of living things . external and internal chemical environments of cells , These reactions are influenced by both temperature and ...
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