So the strain modal broken line drawing method is presented for determning the location of the crack on a structure.
从而提出了应用应变模态折线图来估计梁结构上裂纹位置的方法。
2
The results showed that during drawing wire the cleavage crack of diamond in crystal face(111)is the main reason.
拉丝过程中金刚石模子的失效是由金刚石沿（111）面解理引起的。
3
In order to guarantee drawing rightly for unbonded prestressed concrete structure, crack control measures before drawing are illuminated in this paper.