The profile or array technique is not new . 测线法或合阵法并不是新的。
Ultimate load designs according to the yield-line or strip methods do not guarantee safety against cracking or excessive deformation . 接屈服线法或条带法的极限荷载设计不能完全保证抗裂或防止过度变形。
3 - d step profilometry measurement by grating projection 台阶状面形的投影栅线法测量技术