单词 | signal line |
释义 | > as lemmassignal line signal line n. any of various types of cable, wire, etc., by which a signal is sent; (Diving) = lifeline n. 2b. ΚΠ 1832 Waldie's Select Circulating Libr. 4 Apr. 14 Heans at first had his foot entangled in the signal-line, but quickly released it; and notwithstanding this detention,..he rose very rapidly, and was first to reach the surface. 1853 Mechanics' Mag. 26 Mar. 245/2 The signal-line..be carried along the carriages,..and to be attached to the lever of the bell. 1908 B. Cunningham Treat. on Princ. & Pract. Harbour Engin. iii. 58 The minimum number of attendants required for a single diver is three—one for the signal line and air-pipe, and two to work the pump. 1967 T. Lewis & L. R. Taylor Introd. Exper. Ecol. iv. 134 Orb-spinners..make a characteristic web in which there is a radius devoid of spiral threads, with a signal line in the middle of this region leading from the centre of the web to the spider's retreat. 1986 W. L. Schweber Integrated Circuits for Computers ii. 25 Any electronic system has some small unwanted signals called electrical noise added to the signal lines. 2005 Halifax (Nova Scotia) Daily News (Nexis) 5 Sept. 4 A Dutch dive supervisor who can tell what his charges are doing 50 metres below by their gentle tugs on a signal line. < as lemmas |
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