This paper introduces the operational principle, system architecture and major functionalities of a comprter-centered LD-system, which orients the thunderstroke using time difference.

摘要介绍了以计算机为核心时差法雷击定位系统LD型系统理、系统结构及主要功能。

By CAD, based on diagrammatize principle, the dimensions of every parts in cracker rocker mechanism under different conditions are determined, and design demands are satisfied.

将图理析化，完成不同条件下满足设计参数摇杆机构各构件尺寸确定，整个过程借助计算机辅助设计。

Based on the principle of thermodynamics, the authors have made much calculation of the thermal effect caused from oxidation and generation of monodrome alloys and slag.

根据热力学理，者利用计算机计算功能，对大量单质合金、炉渣氧化热效应、生成热效应进行了计算。