| 单词 | otto cycle | 
| 释义 | > as lemmasOtto cycle  1.  attributive. Designating 		 (a) the four-stroke cycle employed in most petrol and gas engines, of which the four stages are ideally characterized as adiabatic compression, heat addition at constant volume, adiabatic expansion, and heat loss at constant volume;		 (b) an engine employing this cycle. Frequently in  Otto cycle,  Otto engine.This cycle was first described by A. Beau de Rochas in 1862, but Otto was the first to build an engine employing it (in 1876) after conceiving the idea independently. ΘΚΠ society > occupation and work > equipment > machine > machines which impart power > engine > internal-combustion engine > 			[noun]		 > engine employing specific cycle Otto engine1878 Otto1886 two-stroke1963 society > occupation and work > equipment > machine > machines which impart power > engine > internal-combustion engine > 			[noun]		 > engine employing specific cycle > cycle of Otto cycle1878 1870    Rep. U.S. Commissioners Paris Universal Expos. 1867 iii. 60 		(heading)	  				Otto & Langen's gas-engine.]			 1878    Sci. Amer. 30 Mar. 195/1  				The new Otto horizontal gas engine..closely resembles the ordinary horizontal steam engine. 1885    W. Macgregor Gas Engines ii. 81  				The original and classic type of the Otto engine has received improvements at the hands of both its German and English manufacturers. 1886    D. Clerk Gas Engine vii. 183  				The indicator diagrams prove the very efficient nature of the Otto cycle. 1930    Engineering 7 Feb. 186/1  				Theoretically, the Otto cycle..promised higher efficiencies than the constant-pressure Diesel cycle. 1966    McGraw-Hill Encycl. Sci. & Technol. 		(rev. ed.)	 VII. 201/1  				For an Otto engine, an increase in either the air temperature or density increases the tendency of the engine to knock. 1997    BBC Top Gear Mag. Nov. 13/4  				By adding an electric motor and a ultra-capacitor, Honda has turned the one-in-four power stroke of the Otto cycle into a four-in-four system. Otto cycle   More fully  Otto dicycle,  Otto cycle. A kind of dicycle enjoying some popularity in the early 1880s (see quot. 1958). ΘΚΠ society > travel > means of travel > a conveyance > vehicle > vehicle propelled by feet > 			[noun]		 > cycle > bicycle > early type of > with wheels side by side Otto1879 dicycle1887 1879    Bazaar, Exchange & Mart 29 Oct. 311/1  				We..had an agreeable surprise on beholding the Otto for the first time. 1885    Cyclists' Touring Club Gaz. Sept. 284  				My experience is that the ‘Otto’ is more easily ridden uphill than the F.S. tricycle. 1887    Viscount Bury  & G. L. Hillier Cycling (Badminton Libr. of Sports & Pastimes) xiii. 369  				All Ottos built before 1882 were fitted with block breaks. 1958    C. F. Caunter Handbk. Coll. Cycles (Sci. Mus.)  ii. 12  				The Otto cycle soon became somewhat popular, as it was considered less dangerous than the ordinary high bicycle, but the subsequent development of the safety bicycle led to its complete abandonment. 1994    Sports Illustr. 22 Aug. 70/3  				The most valuable piece is an 1881 Otto dicycle. < as lemmas | 
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