| 单词 | power brake |
| 释义 | > as lemmaspower brake power brake n. a power-assisted brake, esp. one in a motor vehicle. ΘΚΠ society > travel > means of travel > a conveyance > vehicle > vehicles according to means of motion > vehicle moving on wheels > [noun] > parts of vehicle moving on wheels > devices to retard or stop motion > brake or braking apparatus > types of handbrake1841 rubber1850 air brake1857 disc brake1865 power brake1865 hydraulic brake1874 vacuum-brake1875 rim brake1876 drum brake1882 sand brakea1884 calliper brake1904 rheostatic brake1920 callipers1972 1865 W. Loughridge Friction: in its Pract. Relations to Rolling Stock on Railways 30 You can base your calculations for leverage for the brakesman or for a power brake with more certainty, as the coefficient of friction of the wrought iron rail and wrought iron shoe are generally about the same. 1896 G. Richmond tr. G. Lieckfeld Gas Engines ii. 29 The simplest and oldest of the power brakes is that shown in fig. 3, ‘The Prony Brake’. 1953 Life 8 June 11/2 (advt.) The new Packard gives you the Big Important Three for today's swift, tough, give-and-take traffic: power brakes, power steering and power shifting. 1993 Pop. Sci. Dec. 144/3 Among the predicted features of postwar cars were power steering, power brakes, fuel injection, and automatic transmission. < as lemmas |
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