| 释义 |
thruster|ˈθrʌstə(r)|
[f. thrust v. + -er1.]
1. One who or that which thrusts: see the verb.
1597A. M. tr. Guillemeau's Fr. Chirurg. b iv b/2 The expulser or thruster out (of teeth). 1612J. Davies Muse's Sacr. (Grosart) 34/2, I was sore thrust at,..But, thou o'er-threw'st my thrusters. 1794Hope's New Meth. Fencing 221 After whatever Fashion the Thruster holds his Fleuret. 1825Chron. in Ann. Reg. 4/2 The corves..were drawn to the shaft of the pit by several other men called hurriers, and a number of boys called thrusters [cf. thrutcher]. 1907Contemp. Rev. Apr. 512 Brunetière was a keen thruster and never missed a parry.
2. a. Hunting slang. One who thrusts himself forward in the field, or rides too close to the hounds.
1886Field 2 Jan. 3/1 His companion..chances to be a recognised thruster in the fullest sense of the term. 1892Ibid. 9 Jan. 56/1 More than the average number of thrusters striving for a forward place. 1898J. A. Gibbs Cotswold Vill. xiii. 305 That somewhat unpopular class of sportsmen, the ‘thrusters’ of the hunting field.
b. fig. One who pushes his way; an aggressive or go-ahead person. Also spec. with reference to driving.
1925Fraser & Gibbons Soldier & Sailor Words & Phr. 280 Thruster, a, an obnoxious, pushing person. A ‘bounder’. 1927Observer 6 Nov. 13/1 Those who described their more successful fellows as ‘thrusters’ and ‘climbers’. 1927Morning Post 28 Nov. 10/4 The ‘road thruster’, or the man with the ‘passing’ mania, is usually a nuisance. 1960Times 7 June 13/7 The ordinary lorry or van driver..is often the worst thruster of all. 1964C. Willock Enormous Zoo ii. 21 Bere..was known as a thruster when it came to administration. 1974R. Harris Double Snare xxvi. 197 Robert's car has fallen back, displaced by an Italian thruster's enormous red tourer. 1982Barr & York Official Sloane Ranger Handbk. 106/1 She will not lend her support to any ambitious young thruster or leak the firm's secrets to a rival.
3. a. Astronaut. A small rocket engine on a spacecraft for providing the thrust needed to alter or correct its flight path or its attitude.
1962J. Glenn in Into Orbit 146 This would include warming up the hydrogen peroxide thrusters so that they would go to work without delay when I activated the controls. 1965Newsweek 13 Dec. 60 In past missions, excitement, the thump of the thruster rockets and a busy schedule all conspired to deprive the astronauts of sleep. 1969Guardian 22 July 18/3 A 46-second firing of the reaction control thrusters altered Eagle's orbit. 1973Times 28 Nov. 8/2 Small thrusters were fired yesterday which put the 570lb craft on course so that it will fly to within 81,000 miles of Jupiter on December 3. 1977Sci. Amer. Feb. 61/1 The satellite is carefully tracked by ground stations, the propulsion vector needed to compensate for drift is computed and the appropriate thrusters are fired by radio command.
b. Oil Industry. Each of several jets or propellers on a drill ship or offshore rig, used for accurate manœuvring and maintenance of position.
1972L. M. Harris Introd. Deepwater Floating Drilling Operations i. 3 Several vessels have been built, or are in the design and construction stage, that depend entirely upon thrusters, or powered units, to position the vessel dynamically. 1975Gen. Electric Investor Winter 18/2 In the newest technique called ‘dynamic positioning’, gimbaled motors driving thruster propellers keep the rigs positioned over the drilling hole despite wind, waves and currents. 1983New Scientist 2 June 627/2 When it is semi-submerged, a ‘dynamic positioning’ system, thrusters controlled by computers, keeps the ship within two metres of a programmed position in a force seven gale.
Add:4. A kind of surfboard or sailboard capable of greater speed and manoeuvrability than a standard model with one central fin, owing to a more streamlined shape and the provision of one or more additional fins. Also, one of these fins (also thruster fin).
1982Surf Scene VII. 8/1 (Advt.), Thrusters are ridden one or two inches shorter than normal with tails being one or two inches wider. 1986Boards May 22/4 Their..latest development is the forefin which places a tiny thruster in the same box in front of the main skeg. 1988Boardsailor (S. Afr.) June 22/1 The Taloa has no daggerboard but sports a thruster fin arrangement, with the two added thrusters assisting in manœuvrability. |