1.In the above condition,we can work out the PSA which has good integrative performances: initial tack of 14(ball number),hold tack of longer than 24 hours, 180°peeling strength of 15.33 N/25mm.
制得了初粘力14(球号)、持粘力>24 h、180°剥离强度达15．33 N·(25mm)-1的具有优良综合性能的压敏胶。
2.To change or cause to change direction; go or cause to go from one tack to another.
使…转向改变方向或使…改变方向；从一个航向转到另一个航向或使从一个航向转到另一个航向
3.Tack the sleeves on then sew them up.
先缝上袖子，然后再把他们缝制好。
4.Tack the kick at my whistle!
听我的哨声踢球！
5.The speaker suddenly changed tack and left us all rather confused.
演讲人突然改变了论调，把我们都搞糊涂了。
6.A tack with a smooth, rounded head that can be pressed into place with the thumb.
图钉一种可用拇指揿入某处的有光滑圆形头部的平头钉
7.Tack the folds down before you sew them firmly into place.
先用大针脚将褶子松松地缀住，然后再将其缝纫到位。
8.You would better tack down the edge of the carpet .
你最好把地毯的边缘用钉子固定住。
9.Minimum of three tack welds.
至少三处定位焊。
10.We came about and went off on a new tack.
我们改变方向朝一个新的航向开去。
