It is possible in this new algorithm to deal with space frames without firstly delineating the basic determinatestructure and the ensuing numerical computation is rather stable.
用该算法求解杆系结构可不必确定基本结构，且能获得稳定的数值解。
2
Directional solidification technology is a technical course that use certain equipment to make directional structure material with excellent performance at determinate conditions.
Under determinate loading mode, the influence of the variability of the concrete to the resistence capacity of the structure is considered by using probabilistic method.