| 单词 |
restrictor |
| 释义 |
restrictor|rɪˈstrɪktə(r)|
[f. restrict v. + -or.]
1. One who restricts or advocates restriction.
1825J. S. Mill in Westm. Rev. Apr. 291 It is a proposition which the restrictors themselves do not venture to dispute. 1952Chambers's Jrnl. Apr. 230/1 Restrictive covenants in house or land deeds may be a curse to any buyer... It can happen that covenants are interpreted in a peculiar manner by the restrictors.
2. A device for restricting the flow of a fluid, e.g. by means of a porous medium or an orifice. Freq. attrib.
1940E. Molloy Aeroplane Maintenance & Operation I. 105 Restrictor jets, these..are situated in two recesses opposite the lower edge of the throttle when in the closed position. 1961R. V. Watts in D. S. Carton et al. Rocket Propulsion Technol. I. 54 By opening the..restrictor, it became possible to set minimum thrust at the required angle. 1966L. A. H. Eastman tr. G. Schenkel's Plastics Extrusion Technol. & Theory xiii. 368 The sheet die developed in the U.S.A. for the processing of impact-resistant polystyrene..has a flexible restrictor bar fitted in the upper part of the die, transverse to the flow direction. 1979Wear LIV. 331 The stiffness of hydrostatic [journal] bearings is greatest when valve restrictors are used and decreases progressively with orifice and capillary restrictors. |
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字词 必需的 释义 necessary; necessitous; required\n【医】 essential; indispensable; obliga......