| 单词 | time switch |
| 释义 | > as lemmastime switch time switch n. a switch that operates automatically at or after a fixed time. ΘΚΠ the world > time > instruments for measuring time > [noun] > timer or chronograph stop-watch1740 time marker1835 time recorder1836 hourglass1852 time clock1857 time lock1858 egg-glass1867 chronograph1868 egg-timer1869 timer1869 gunner's pendulum1876 time switch1884 chess-clock1905 phototimer1942 pinger1950 shot clock1967 the world > matter > physics > electromagnetic radiation > electricity > circuit > device to open or close circuit > [noun] > by mode of operation time switch1884 pull switch1888 press switch1892 autoswitch1903 tumbler switch1907 snap switch1926 timer1934 1884 Iron 1 Feb. 90/3 Fig. 14 illustrates a time switch, which is an arrangement whereby a consumer may have one or more arc or group of incandescence lamps on his premises turned off at any desired time. 1939 Kingston (N.Y.) Daily Freeman 13 Dec. 14/8 (advt.) For the person with a dark closet or stairway. Everyready [sic] Wallite with pull-chain and time switch which automatically turns light off. 1963 Listener 3 Jan. 47/1 Portable time-switches vary in elaborateness and price. 2003 HomeDIY Dec. 50/4 To turn table lights, radios and TV sets on and off, use plug-in time switches between the plug and socket. < as lemmas |
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