| 单词 | tachometer |
| 释义 | tachometer|tæˈkɒmɪtə(r)|
[f. Gr. τάχος speed + -meter: cf. barometer.]
1. a. An instrument by which the velocity of machines is measured; spec. one that indicates the speed of an engine in r.p.m. b. An instrument for measuring the velocity of a moving body of water, a current-measurer.
1810Donkin in Trans. Soc. Arts XXVIII. 185 An instrument of my invention for indicating the velocity of machines, and which may not improperly be called a Tachometer. 1825J. Nicholson Operat. Mechanic 42 The method of putting the tachometer in motion whenever we wish to examine the velocity of the machine. 1864Webster, Tachometer,..(b.) an instrument for measuring the velocity of running water in rivers, canals, &c. 1875L. D'A. Jackson Hydraulic Man. i. 84 The tachometer of Brünings is the best instrument of this type. 1918Bull. U.S. Naval Consulting Board No. 3. 10 Many new instruments have been devised for aircraft. These include..tachometers, which indicate the engine speed. 1953C. A. Lindbergh Spirit of St. Louis ii. vi. 187 The tachometer needle shows 1825 r.p.m. 1975Drive New Year 88/1 This is an important job performed by the rev⁓counter, or tachometer.
2. Special Comb.: tachometer generator = tacho-generator.
1946Shell Aviation News No. 103. 24/1 The gearbox is of Rolls-Royce design... It is mounted on the bulkhead and provides drives, on the forward side, for the air pump and the generator, and on the rear side for the tachometer generator. 1958W. D. Cockrell Industr. Electronics Handbk. ii. 254 Tachometer generators are used in systems to generate feedback signals in servoloops or used directly with an indicating instrument.
So taˈchometry, the scientific use of a tachometer; the measurement of velocity; also tachoˈmetric a.
1891Cent. Dict., Tachometry. 1931S. R. Roget Dict. Electr. Terms (ed. 2) 341/1 Tachometric electrometer. 1967O. I. Egerd Control Syst. Theory vii. 238 Tachometric feedback. |
英语词典包含277258条英英释义在线翻译词条，基本涵盖了全部常用单词的英英翻译及用法，是英语学习的有利工具。
相关内容11：
相关热词搜索：tachometer英英词典英英释义英语词汇意思用法释义英语
字词 甲基酪氨酸 释义 【化】 metyrosine\n【医】 andirine; methyltyrosine; surinam-bark 汉......
单词 tachy- 释义 tachy-|tk|combining form of Gr. - swift, used in the formation of some sc......
字词 甘汞 释义 calomel\n【化】 calomel; mercury protochloride; mercury subchloride\n【医】......
字词 甘氨酸铜 释义 【化】 cupric glycinate 汉译英翻译词典收录405719条汉英翻译词条，基本......
字词 疼性运动不能 释义 【医】 acinesia algera 汉译英翻译词典收录405719条汉英翻译词条，基......
单词 elende 释义 † elende Obs. rare—1.[a. Ger. elend, Du. eland: cf. eland.]An elk.1697P......