| 释义 |
deflector|dɪˈflɛktə(r)|
[f. deflect v. + -or for -er: the corresponding form on L. analogies is deflexor.]
1. An instrument or contrivance for deflecting; e.g. (a) a deflecting magnet; (b) a plate or diaphragm for deflecting a current of air, gas, etc.
1837Brewster Magnet. 344 Dipping needle Deflector, for measuring the Variation and Dip of the Needle. 1879Thomson & Tait Nat. Phil. I. i. §198 The ‘Deflector’, an adjustible magnet laid on the glass of the compass bowl and used..to discover the ‘semicircular’ error produced by the ship's iron. 1887Pall Mall G. 4 June 12/1 These sprinklers consist of a plate and a deflector..The deflector is for the purpose of breaking the column of water into spray, which falls in a dense shower over the flames.
2. attrib.
1940Chambers's Techn. Dict. 230/1 Deflector coil, a coil so arranged that a current passing through it produces a magnetic field which deflects the beam in a cathode ray tube employing magnetic deflection. Deflector plates, electrodes so arranged in a cathode ray tube that the electrostatic field produced by a difference of potential between them deflects the beam. 1961Lancet 30 Sept. 755/1 For protection of the area in front of the face, there was no significant difference between the performances of fabric ‘filter masks’ and paper or paper-insert ‘deflector masks’. 1962Which? Dec. 359/1 Eight of the typewriters had an erasure table which also acted as a deflector plate to stop the paper wrapping round the platen. |
