| 释义 |
preˈcool, v.
[pre- A. 1.]
trans. To cool prior to use or some further treatment. So preˈcooled ppl. a., preˈcooling vbl. n. Also preˈcooler, a device for precooling.
1904Physical Rev. XIX. 330 From the compressor, the air passes successively through an aftercooler; a separator;..and finally through a precooler charged with broken ice or snow—reaching the liquefier at a temperature of about 2°. 1911Power 14 Nov. 755/2 The Atchison, Topeka & Santa Fé Railway Company has erected at San Bernardino, Cal., a combined ice-manufacturing and precooling plant. Ibid. 759/1 For icing the cars, upon the completion of precooling, or for such cars as are not precooled, the ice is handled by the endless-chain conveyor. 1912Ice & Refrigeration Jan. 14/1 Under some conditions the plant intended only to precool fruits before they are loaded is most advantageous while..under other conditions car precooling after loading is preferable. 1926Spectator 18 Sept. 412/1 By having a hermetically sealed compartment with the commodity pre-cooled, a low temperature is maintained until the box is opened at destination. Ibid., After the cleaning the pre-cooling takes place. 1936Discovery Apr. 104/1 The compressed helium is first pre-cooled by liquid nitrogen. 1958A. Laurie et al. Commercial Flower Forcing (ed. 6) xii. 328 The cases containing the bulbs are placed in storage in early October at 32 to 34°F, where they remain until shipping, which is usually in late November. Lily bulbs handled this way are referred to as precooled bulbs in contrast to bulbs sent direct to the florist immediately after digging and grading. 1958Times 23 June 2/6 The more promising development is the use of precooling plants on the farms, the object being to cool the fruit quickly as soon as it is picked but before it is finally packed. 1970Times 4 Sept. (Aviation Suppl.) p. ix/9 Imperial Metal Industries' Marston Excelsior subsidiary will display a range of heat exchangers, including..a precooler for the Hawker Siddeley Nimrod. 1973Times 22 Sept. 13/1 We buy a quantity of double nosed Golden Harvest pre-cooled daffodils..which are delivered in the first week of October. |