tail fin 是什么意思

	the tail of fishes and some other aquatic vertebrates 同义词：caudal fin,
	one of a pair of decorations projecting above the rear fenders of an automobile 同义词：tailfin, fin,
	a stabilizer that is part of the vertical tail structure of an airplane 同义词：vertical stabilizer, vertical stabiliser, vertical fin, tailfin,

	1.	This should cover your tail fin 这个应该可以保护你
	2.	The fish ' s tail fin was hurt 这条鱼的尾鳍受伤了。
	3.	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日在纽约市坠毁的587号班机，是由于该架a300型空中巴士的尾翼，或称垂直平衡器，从机身脱落所致；因此有关复合材料日益取代金属的使用情况，引起大众关切。
	4.	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 为了使数学模型更贴近生物模型，本文又将尾鳍处理为只考虑弦向变形而不考虑展向变形的柔性体，两者对比的结果表明，柔性翼使得平均推力减小，但是，对具有相同推力的柔性翼比刚性翼具有更高的效率。

tail fin是什么意思