| 单词 | gear ratio |
| 释义 | > as lemmasgear ratio gear ratio n. the ratio between the rates at which the last and the first wheels of a train of gears rotate. ΚΠ 1909 Westm. Gaz. 16 Nov. 5/2 The gear ratios are given as: 1st, 15 to 1; 2nd, 8.4 to 1; and on the top-drive 4.7. 1915 A. B. F. Young & W. G. Aston Compl. Motorist (ed. 8) iii. 81 An arrangement of toothed pinions, which allow two, three or four different gear ratios to be employed as the case may be. 1959 ‘Motor’ Man. (ed. 36) iv. 74 The gear ratios usually quoted..take also into account the reduction in the final drive. 1959 ‘Motor’ Man. (ed. 36) iv. 91 Reference was made to an overdrive unit... Its purpose is to provide an extra gear ratio, higher than direct drive, so that quiet and economical cruising is possible. < as lemmas |
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