Meet the needs of undergraduate physicalcriterion.
符合大学生体育合格标准。
2
Physical Significance of adjustable speed characteristic for fan is stated and functional relation criterion between adjustable speed characteristic factor for fan is established.
阐明通风机调速特性的物理意义,建立系列风机调速特性系数与连续机号间的函数关系准则。
3
In this article, the writer expounds the interrelation between criterion for equilibrium and condition of equilibrium in physical chemistry by deducing both of them.