This should cover your tail fin 這個(gè)應(yīng)該可以保護(hù)你
The fish's tail fin was hurt 這條魚的尾鰭受傷了。
The november 12 crash of flight 587 in new york city, in which the tail fin, or vertical stabilizer, of an airbus a300 fell off, raised concerns about the increasing use of composites over metal 去年11月12日在紐約市墜毀的587號班機(jī),是由于該架a300型空中巴士的尾翼,或稱垂直平衡器,從機(jī)身脫落所致;因此有關(guān)復(fù)合材料日益取代金屬的使用情況,引起大眾關(guān)切。
In order to imitate tune tail fin better, a flexible fin only in chordwise is considered . results shows that flexibility can increase the propulsive efficiency and cause small decreases in the average thrust compared with a rigid caudal fin with similar motion . next, a comparison between the rectangle fin and the lunate fin is given 為了使數(shù)學(xué)模型更貼近生物模型,本文又將尾鰭處理為只考慮弦向變形而不考慮展向變形的柔性體,兩者對比的結(jié)果表明,柔性翼使得平均推力減小,但是,對具有相同推力的柔性翼比剛性翼具有更高的效率。