简介:Anewapproachtohybridfront-endsystems;Aversatilerivetingsystemformetal/CFCstructures;Achievinglow-porositylaserweldsinaerospacealuminiumalloy;Affordablereconfigurabletooling;;Designandevaluationofnovelcompositeaircraftrepairs;Enhancementoffatiguelifeofself-piercingrivetedjointsbycoining……
简介:制作投影幻灯片,小小的铆钉是必不可少的。下面介绍一种巧制铆钉的方法。材料和工具:蜂皇浆吸管(最好是圆而较硬的)、铅笔刀、剪刀、蜡烛。制作:点燃蜡烛,把铅笔刀放在火苗上烧烫,用棉花擦去小刀上的烟灰,然后迅速按在吸管的一头,