切口形状 meaning in Chinese

notch geometry

And main conclusions can be shown as follows : first , the optimum parameters of blasting cut are presented . in choosing the height of blasting cut , 2 . 0 to 3 . 0 times of the wall widths of a towering building are used instead of from 1 . 5 to 3 . 0 . and the lengths of blasting cut that range from 62 % to 64 % of the bottom perimeter of a towering building should be more reasonable than from 60 % to 64 %
取得了如下主要成果：爆破切口参数方面，爆破切口高度按壁厚的1 . 5 3 . 0倍作为爆破设计的取值时，下限值范围偏大，系数应取2 . 0 3 . 0 ；爆破切口长度按烟囱底部周长的60 66取值时，切口长度偏大固然不可取，而过于保守同样是不可取的，范围在62 64是比较合理的；在常用的正梯形、倒梯形、矩形爆破切口形状中，以正梯形效果最好。