| 单词 | power assistance |
| 释义 | > as lemmaspower assistance power assistance n. the use of power from an engine to assist manual operation; provision for this; = power assist n. ΘΚΠ the world > matter > physics > energy or power of doing work > [noun] > capacity for exertion of mechanical force > as distinguished from hand-labour > assisting manual operation power assist1954 power assistance1959 society > travel > means of travel > a conveyance > vehicle > powered vehicle > [noun] > motor vehicle > expressing speed or acceleration > power assisting manual operation power assistance1959 1959 Times 1 Sept. 12/2 One of the technical improvements in cars that has taken place unobtrusively during the past four years has been the provision of power-assistance for the brakes. 1970 Commerc. Motor 25 Sept. 65/1 The steering was light even though power-assistance is not fitted. 1997 Car Mar. 83/2 Pin-sharp steering with no power assistance. < as lemmas |
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