这是披头士乐队所在的EMI的艾比路录音室出的最权威的指南。150页全彩，100页双色版，和100页黑白照片。
This is the definitive guide to every recording session done by the Beatles at EMI's Abbey Road recording studio. 150 full-color, 100 duotone, and 100 black-and-white photographs.
而增大记录光与门光束的光强比，可以提高双色记录灵敏度。
The experimental results show that the decrease of the intensity ratio of writing to gating beam and the increase of the gating...
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