spread velocity meaning in Chinese

传播速度

In the second part of chapter two , the form and classification of crack is discussed in detail , reducing the formulae of the crack ' s spread velocity , controlling the forward spreading of the cracks based on the theory of rupture mechanics
在该章的第二节中，对起重机金属结构的裂纹形式和分类进行比较详细的描述，同时应用断裂力学的知识，推导出裂纹扩展速度公式，控制裂纹的进一步扩展。
( 4 ) the collision zones of eurasia are very complicated due to the extrusion of continent lithospheres and the subduction between the oceanand continent lithospheres , and we analyze the mutual effects of different lithospheres and the crustal deformation features of collision zones ( 5 ) firstly we give the present - day spreading velocity of the mid - atlantic ridge
（ 4 ）系统分析了欧亚碰撞带大陆与大陆和大洋与大陆两种截然不同的岩石圈挤压与俯冲对欧亚板块的影响及其边界地壳形变特征。