单词 | forced ventilation |
释义 | > as lemmasforced ventilation 7. Of a draught: produced artificially; so forced-air, forced ventilation; forced (feed) lubrication, force-feed lubrication (see force-feed n.). ΚΠ 1864 Webster's Amer. Dict. Eng. Lang. at Draught Forced draught, the draft produced by a blower, as by compressing the air beneath a fire. 1885 Marine Engineer 7 39/1 (heading) On the Application of moderate forced draught to the furnaces of small steam vessels. 1887 Encycl. Brit. XXII. 496/2 Where forced draught has been substituted for chimney draught. 1898 Westm. Gaz. 18 May 2/3 In our service we are satisfied with a forced draught trial of four hours as a rule. 1901 Feilden's Mag. 4 441/2 The forced-air draught fans... Forced-air draught is preferable to steam blast. 1907 J. G. Horner Henley's Encycl. Pract. Engin. V. 40/2 It is hardly possible to overrate the importance of forced lubrication in modern practice. 1907 Westm. Gaz. 19 Nov. 4/2 Forced feed lubrication. 1909 Westm. Gaz. 12 Aug. 4/2 Designing an engine on the forced-induction principle. 1930 Engineering 28 Feb. 280/3 Forced lubrication is employed for the main engine and for the turbo-blower. 1960 Farmer & Stockbreeder 19 Jan. 108/1 The forced-draught cabinet incubators. 1971 Sci. Amer. May 73/3 In a forced-draft [cooling] tower the fan is at the bottom and pushes the air up through the tower. < as lemmas |
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