单词 | scanning spot |
释义 | > as lemmasscanning spot scanning spot n. the spot where an incident beam (usually of electrons or light) strikes the surface it is scanning. ΘΚΠ society > communication > broadcasting > television > visual element > [noun] > scanning, etc. scanning1927 scanning spot1929 flying spot1933 interlacing1935 line scanning1935 interlace1936 line scan1938 matrixing1951 line blanking1952 1929 H. H. Sheldon & E. N. Grisewood Television xiii. 139 Since the scanning spot has finite dimensions, its response to an abrupt change in the surface being viewed will be less sharply defined than the original. 1975 D. G. Fink Electronics Engineers' Handbk. xx. 5 The electron beams that create the scanning spots are approximately circular, but their intensity is not uniform. < as lemmas |
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