imperfects

The facts which can enhance the energy absorption capacity were provided , including the impact section , impact velocity and initial geometrical imperfects .

总而言之，冲击作用横截面、冲击速度、圆管初始几何缺陷等是能够帮助提高能量吸收能力的影响要素。

Studied a sample of companies , only Ping An Life has been in the production frontier surface . The rest of the companies are efficiency imperfects .

所研究的样本公司中，仅有平安人寿一直处于生产前沿面上，其余公司均存在效率缺失状况。

The imperfects of existed optimization methods for cutting data are overlaborate procedure and time consuming , and it is difficult to meet all kinds of requirements in modern manufacturing system .

目前，已有的切削数据优化方法存着计算步骤繁复、优化时间长等缺点，难以满足现代制造技术发展的需要。

While compared with other quite mature theories , the fractal theory had many imperfects points and a relatively strange domain to the majority scholars who were engaged in the geographic science research .

但分形理论和其他比较成熟的理论相比，还有很多不完善的地方，对从事地理科学研究的大多数学者来说，分形研究还是一个相对陌生的领域。

Methods : 1 . Three deerskins ( drown on 7 mm × 7mm square reseaus ) was pegged on the board by thumbtack . Then line scar and imperfects of rhomboid or rounded were made in the deerskins .

方法：1.将鹿皮（标有7mm×7mm正方形网格）固定于木板上，然后在网格上分别设定线性疤痕、菱形或圆形缺损。