| 单词 | overhead valve |
| 释义 | > as lemmasoverhead valve overhead valve n. a valve in an internal combustion engine which has its seat in the top of the combustion chamber, in the surface opposite the piston. ΘΚΠ society > occupation and work > equipment > machine > machines which impart power > engine > internal-combustion engine > [noun] > parts of > valves side valve1886 cutout1905 sleeve-valve1910 overhead valve1921 1921 A. W. Judge Automobile & Aircraft Engines viii. 316 Another reason for the better volumetric efficiency of the overhead valve lies in the fact that [etc.]. 1991 News Jrnl. (Washington, Delaware) 15 Aug. a10 (advt.) Lawn & Garden Tractors..12-H.P. overhead valve engine..5-speed forward Peerless transaxle. < as lemmas |
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