单词 | ttl |
释义 | > as lemmasT.T.L. T.T.L. adj. Photography through-the-lens (metering). ΘΚΠ society > leisure > the arts > visual arts > photography > action of taking photograph > technical factors > [adjective] > light measurement through-the-lens1947 T.T.L.1968 1968 Amateur Photographer 24 Apr. 4/2 (advt.) The most sought after T.T.L. camera! 1978 Amateur Photographer 2 Aug. 101/1 Landscapes with a lot of sky detail in the shot can often be wrongly exposed, particularly if the camera has TTL metering. TTL TTL n. Electronics = transistor-transistor-logic n. at transistor n. Compounds. ΘΚΠ the world > matter > physics > solid state physics > semiconductivity > transistor > [noun] > logic of DTL1960 TTL1963 1963 Electronics 22 Mar. 54/1 Transistor-transistor logic (TTL) offers a saturated-transistor logic that is simple, compact, and has a high degree of design flexibility. 1967 Electronics 6 Mar. 123/1 Litton Industries Inc. had developed the ‘Phoenix gate’ TTL for the Phoenix missile. 1977 Sci. Amer. Sept. 79/3 Compared with the previous family of RTL gates, TTL circuits provide greater output power (so that more gates in the next stage of an array can be driven), less stringent tolerances in manufacturing and greater immunity to spurious voltages. < as lemmas |
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