| 单词 | pan head |
| 释义 | > as lemmaspan head pan head n. a head of a rivet, bolt, screw, etc., shaped like an inverted flat-bottomed pan; frequently attributive. ΘΚΠ society > travel > travel by water > vessel, ship, or boat > shipbuilding and repairing > [noun] > shipbuilding > nails, rivets bolts rove and clench1336 scupper-nail1485 wrakling1494 ribbing-nail1703 filling-nail1784 Blake's screw1840 in-and-out bolts1841 scarp-bolt1867 pan head1869 1869 E. J. Reed Shipbuilding xvii. 328 The common form of rivet head employed for shipbuilding is that known as a pan head. 1947 T. J. Reynolds & L. E. Kent Struct. Steelwork (ed. 8) iii. 38 Snap heads and pan heads form a projection beyond the plate face. 1986 Handyman Dec. 19/1 If you're looking for a power-drive screw with a shoulder.., try Phillips pan head sheet metal screws. pan head pan head n. a mechanism at the top of a tripod or other mount that allows the camera to move in both horizontal and vertical planes; a pan-and-tilt head. ΘΚΠ society > leisure > the arts > performance arts > cinematography > filming > filming equipment > [noun] > camera > support for boom1931 rostrum1935 crane1937 pan head1940 1940 Amer. Speech 15 359/2 Pan head, the mechanism at the top of a tripod which permits the camera to be moved in both horizontal and vertical planes. 1991 Photo Answers July 86/2 Velbon make tripods especially for video cameras. The range includes features like fluid pan heads for super smooth action, four position handles, quick release, geared centre column. < as lemmas |
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