| 释义 |
reˈcirculating, ppl. a.
[f. prec. + -ing2.]
1. Circulating again or continuously, in senses of the vb.
1916Harding & Willard Mech. Equipment Buildings I. xiv. 337 The use of recirculating ducts, through which part or all of the air delivered to the rooms is returned to the furnace to be reheated, will greatly reduce the cost of operation. 1954G. M. Fair et al. Water Supply & Waste-Water Disposal xxx. 908 The recirculating system generally includes pumps, hair-catchers, chemical feeds.., filters, disinfecting equipment.., and heaters. 1964Proc. R. Soc. B. CLIX. 262 Some of the large lymphocytes in thoracic duct lymph divide..but..the number of new small lymphocytes which they contribute to the total re-circulating pool is extremely small. 1975Offshore Aug. 3/1 (Advt.), Even the initial lead slurry, when you use our patented recirculating mixer, will be to the desired weight.
2. recirculating ball, a ball-bearing running in a closed ball race; usu. attrib. with reference to a form of automotive steering mechanism in which a half-nut containing an eccentrically mounted ball race can be made to move along a helical cam by rotation of the cam.
1946W. H. Crouse Automotive Mech. xxiii. 494 The recirculating ball-and-nut type of steering-gear mechanism that uses a grooved ball nut, ball bearings, and a gear sector. 1956E. Molloy Automobile Engineer's Ref. Bk. xv. 37 Screw-and-nut gears incorporating balls between the screw and nut, and known as recirculating ball steering gears, are widely used on all classes of vehicles above the 12-h.p. range. 1960Farmer & Stockbreeder 23 Feb. 45/2 Light, responsive, re-circulating ball type steering. 1970A.A. Bk. of Car 151/4 (caption) Recirculating balls are used to reduce friction between a rotating worm and a nut moving along it. 1980Times 9 May 26/2 Instead of rack and pinion Toyota has decided to stick with recirculating ball steering. |