| 单词 | entering edge |
| 释义 | > as lemmasentering edge entering edge n. now rare the forward edge of a moving body, spec. (a) the forward edge of the blade of a propeller (of a ship, aircraft, turbine, etc.); (b) Aeronautics the forward edge of an aerofoil, as a wing, tailplane, etc.Now typically called leading edge. ΚΠ 1801 Encycl. Brit. Suppl. II. 789/1 We know such watches... We have seen one whose cylinder was not concentric with the balance, but so placed on the verge that the axis of the verge was at o..between the centre B of the cylinder and the entering edgeb. 1845 Jrnl. Franklin Inst. 9 294 The effort of the entering edge of each blade must cause the water to recede. 1885 Engineer 6 Nov. 351/3 The top or entering edge of a turbine bucket should be straight instead of curved. 1908 H. Maxim Artif. & Nat. Flight vii. 100 Our planes must have a certain length of entering edge—that is, the length of the front edge must bear a certain relation to the load lifted. 1939 Pop. Aviation Apr. 64/2 The same reasoning holds true that the more pointed the entering edge is the more fixed is the best position (angle) of the airfoil section. 1999 Air Power Hist. Winter 6/2 The severity of the defects..included a propensity for the aircraft to catch fire and also the failure of the entering edge..of the upper wing. < as lemmas |
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