The New Encyclopædia BritannicaEncyclopædia Britannica, 1983 - Encyclopedias and dictionaries |
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Page 56
... oxide particles , needle - shaped and roughly one micron ( micrometre ) in length , are widely used . The black oxide , Fe3O4 , has also been used as a magnetic coating material ; it produces a higher signal strength but is more ...
... oxide particles , needle - shaped and roughly one micron ( micrometre ) in length , are widely used . The black oxide , Fe3O4 , has also been used as a magnetic coating material ; it produces a higher signal strength but is more ...
Page 645
... oxide , manganese oxide , and silica , the amount being approxi- mately 7 percent of the weight of the steel made . Addi- tional scrap , iron ore , cold pig iron , or steam in the blast can be used to cool a hot heat ; the temperature ...
... oxide , manganese oxide , and silica , the amount being approxi- mately 7 percent of the weight of the steel made . Addi- tional scrap , iron ore , cold pig iron , or steam in the blast can be used to cool a hot heat ; the temperature ...
Page 683
... oxide , which , by an intramolecular reaction ( cy- clization ) and structural rearrangement , yields the ster- oid lanosterol . This enzyme - controlled reaction may be initiated by introduction of a positive charge into the oxide ring ...
... oxide , which , by an intramolecular reaction ( cy- clization ) and structural rearrangement , yields the ster- oid lanosterol . This enzyme - controlled reaction may be initiated by introduction of a positive charge into the oxide ring ...
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