| 单词 | double-reduction |
| 释义 | > as lemmasdouble-reduction double-reduction adj. ΚΠ 1922 Encycl. Brit. XXX. 950/1 The demands of large users of continuous-current power..are best met either by geared generators (steam turbines driving continuous-current generators through double helical reduction gearing)..or [etc.].] 1957 Encycl. Brit. XXI. 355/2 Later he [sc. Charles Parsons] followed this up by a ‘double-reduction’ gearing which admitted of a still greater difference in speed of rotation between the propeller and the turbine. 1962 Economist 10 Nov. 605/2 By re-rolling the plated steel—the double-reduction process—..American producers are making ‘thin tin’. 1963 R. F. Webb Motorists' Dict. 80 Double reduction gears, a method of increasing the number of gear ratios by the fitting of a second two-speed gearbox separated from the normal box. < as lemmas |
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