| 单词 | wide-band |
| 释义 | > as lemmaswide-band wide-band adj. Electronics and Telecommunications of or relating to a band of electromagnetic frequencies lying within a broad range; esp. of or relating to a transmission system employing a wide bandwidth; frequently contrasted with narrowband adj. ΘΚΠ society > communication > telecommunication > [adjective] > band of frequencies wide-band1931 vestigial side band1940 1931 Proc. IRE 19 716 The paper of the evening on ‘Fundamental Requirements for Wide Band Transmission’ was presented by John K. Hilliard. 1935 Wireless Engineer 12 251/1 A means of examining the behaviour of wide-band amplifiers when supplied with transient input waves. 1967 E. Chambers Photolitho-offset iv. 42 Although this ideal is not fully realised the fact remains that very acceptable results can be obtained using either wide-band (trichromatic) or narrow-cut filters. 1996 Accoustical Imaging 22 70 In general, images obtained by using wide-band signals are of better quality..than those obtained by means of narrow-band signals. 2010 RadioUser Apr. 15/3 Eddie..would like to know the most useful wideband scanner to purchase there that would also be good for use in the UK. < as lemmas |
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