单词 | range mark |
释义 | range markn. 1. An object (typically one of a series) which marks a boundary. ΚΠ 1700 in Early Rec. Town of Providence (Rhode Island) (1893) IV. 139 From it to turne and Range East and be southward to a heape of stones laid for a Range marke. 1890 W. F. Shunk Field Engineer (new ed.) xv. 47 If the western elongation was observed, set off the calculated distance eastward from the northern range mark. 1945 S. B. Jones Boundary-making xii. 214 The boundary may be indicated by reference or range marks. 2002 Milwaukee (Wisconsin) Jrnl. Sentinel (Nexis) 19 May 1 j On the West Coast, lighted steel towers, 20 to 90 feet high, provide range marks for the water boundary [between the United States and Canada]. 2. Gunnery. = range marker n. 2. Now chiefly historical. ΚΠ 1865 Rep. Secretary of Navy (U.S.) App. 197 The enemy had put up their range marks at five hundred,..seven hundred,..and eleven hundred..yards. 1882 H. Schaw Def. & Attack of Positions & Localities (ed. 2) 75 Trees left standing in the zone of artillery fire are very valuable as range marks. 1916 Times 30 Mar. 7/6 Little mounds, which they used as range marks. 1998 Evening Post (Nottingham) (Nexis) 15 Dec. A small fire..gave Bismarck's gunnery officer a range mark and the Hood was straddled by 15in shells. 3. North American. Nautical. = range marker n. 3. ΘΚΠ society > travel > travel by water > vessel, ship, or boat > buoys, marks, or lighthouses > [noun] > object on land or sea as guide marka1398 sea-mark1566 landmark1570 daymark1695 leading-mark1804 tide-mark1861 shoal-mark1875 range mark1886 range marker1934 cardinal mark1974 1886 Ann. Rep. Mass. Harbor & Land Comm. 1885 65 The range marks on the Dry and Little Salvages, and the spindle on Avery's Ledge..were covered with kelp. 1904 Daily Kennebec Jrnl. (Augusta, Maine) 23 June 3/4 The front range marks, on the breakwater, consists [sic] of iron poles five inches in diameter. 1998 Cruising World Oct. 52/1 After passing the breakwater at the entrance to Hilo Bay, follow the buoys and range marks into the dock area. 4. Radar. = range marker n. 4. ΘΚΠ society > communication > telecommunication > radio communications > radio equipment > [noun] > radar apparatus > marks or signals on radar screen range mark1942 ghost1943 pip1944 range marker1944 blip1945 clutter1945 sea return1945 sea clutter1946 angel1947 1942 Instr. Bk. for Navy Models ASG, ASG-1, Aircraft Radar Equipm. (Philco Corp. for U.S. Navy Bureau of Ships) iii. 8/2 The distance of the object is shown on the Indicator screen by ‘Range Marks’ which appear on the sweeping line. 1949 H. E. Penrose Princ. & Pract. Radar xv. 281 In the simplest calibrating system a generator (range mark generator)..produces at equal intervals of time, short sharp signals or pips.., and these are imposed upon the trace just as though they were incoming signals. 1997 Proc. IEEE 84 1814/1 A blocking oscillator..is used to convert the sine wave into these sharp range marks. This entry has been updated (OED Third Edition, December 2008; most recently modified version published online March 2022). < n.1700 |
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