| 单词 | propeller efficiency |
| 释义 | > as lemmaspropeller efficiency propeller efficiency n. ΚΠ 1902 Times 25 Dec. 4/5 Sir John Durston can see his way to higher revolutions with equal, or perhaps increased, propeller efficiency. 1992 Technol. & Culture 33 258 The turbine still operated at too high a speed for optimum propeller efficiency. < as lemmas |
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