The time for precise trajectory design will be reduced greatly when parameters gotten from prelim…
将初步设计获得的参数作为精确设计的初值，能大大缩短精确轨道设计参数的时间。
2
This paper not only describes the principle of the method, but also introduces the steps in detail, and demonstrates the prelim…
文中不仅描述了该方法的基本思想，还给出了具体的实现步骤和有关试验结果。
3
With a view to preventing flour dust from explosion in feed mills, the author has determined and made a prelim nary study of its basic characteristics.