The Encyclopedia Americana, Količina 18Alexander Hopkins McDannald Americana Corporation, 1949 |
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Stran 57
... direct fire on extremely wide targets , four guns may be fired under the direction of a single leader . Guns are used singly only when an extended front must be covered by few guns . Direct machine - gun fire is considered effective at ...
... direct fire on extremely wide targets , four guns may be fired under the direction of a single leader . Guns are used singly only when an extended front must be covered by few guns . Direct machine - gun fire is considered effective at ...
Stran 290
... direct current on account of less weight and cost , and greater simplicity . The reduction in speed is obtained by designing a propulsion motor with more poles than the generator . Thus for alternating current the speed ratio between ...
... direct current on account of less weight and cost , and greater simplicity . The reduction in speed is obtained by designing a propulsion motor with more poles than the generator . Thus for alternating current the speed ratio between ...
Stran 290
... Direct and alternating current are both used , with direct current pre- dominating , except in later naval vessels . The electric generators for auxiliary use are gen- erally driven by geared steam turbines or Diesel engines . Small ...
... Direct and alternating current are both used , with direct current pre- dominating , except in later naval vessels . The electric generators for auxiliary use are gen- erally driven by geared steam turbines or Diesel engines . Small ...
Vsebina
BUCHANAN MILTON A B A Ph D Rear Admiral United States Navy Retired MEDICAL ORGANIZATION UNITED STATES | 21 |
CAMPBELL JOHN C Ph D Professor Emeritus of Romance Languages Boston University | 45 |
CHAO SAMUEL M GREENE ARTHUR M JR M E Sc D D | 224 |
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