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刚才看见一盘开盘带的说明:
+ \/ `+ X9 q g# M K8 b. `This magnetic tape recording should be reproduced at a speed of 7 1/2 inches per second using "a half track head" as normally provided on dual track machine.
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! w! Z! w [3 t- Y这里的“a half track head”是什么磁头?
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0 w: ^, c5 O7 L9 _0 E还有一盘磁带写着1/4 track 7-1/2IPS stereo tape recording.
% S- m. G; B( ]* v8 d( g) [5 o这里的1/4 track什么意思?, I b5 m, {) r
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请懂的开友予以解答,谢谢! |
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