| 释义 |
biplane|ˈbaɪpleɪn|
[f. bi-2 + plane n.3]
1. Math. Each of the pair of planes tangential to a surface at a binode.
1870Cayley in Phil. Trans. R. Soc. CLIX. 206 The binode..is a biplanar node, where instead of the proper quadricone we have two planes; these may be called the biplanes, and their line of intersection, the edge of the binode. The biplanes form a plane-pair. 1905W. H. Blythe Models Cubic Surfaces p. xii, When the biplanes coincide the node is said to be uniplanar.
2. An aeroplane having two ‘planes’ or main supporting surfaces, one above the other.
1874D. S. Brown in Ann. Rep. Aeronaut. Soc. 14 The bi-plane when elevated will proceed for a considerable distance. 1908Westm. Gaz. 14 Aug. 10/2 Mr. Wilbur Wright is busy experimenting with his greatly successful bi-plane. 1910R. Ferris How it Flies 12 In March [1908], Delagrange flew in a Voisin biplane 453 feet. 1911Grahame-White & Harper Aeroplane 17 He [sc. Lilienthal] abandoned the monoplane type of glider in favour of a biplane. Ibid. 18 One of Chanute's biplane gliders was fitted with a stern rudder. 1957P. Kemp Mine were of Trouble iv. 70 A formation of Fiat CR 42 bi-planes. |