The methods for calculating the progressiverate of science and technology include two kinds:mathematical model method and index system method.
现代科技进步的速度愈来愈快，相关的法律规范的制定与完善很难赶上技术前进的步伐。
2
The progressiverate of the patients with increased urinary B_2 excretion was lower than the rate of those with decreased urinary B_2 excretion (12.5%; 47.1%).
核黄素营养水平提高的患者病情进展率12.5%低于核黄素营养水平降低的进展率47.1%。
3
Theoretical formulas were established by overall analysis to the progressiverate springs with variable arm length, and their results were obtained by experiment test.