目前实际中采用的计算方法很繁杂，计算精度低，而且不能给出最优的钻孔位置。

The present applied calculation method is very complicated and low calculating accuracy, and this method can not determine the drilling hole position.

youdao

另一个方法是使用相邻节点之间的压差作为状态变量，这种处理可以使模型更加完整，也可改善低流量下的计算精度。

Another method is to use the pressure difference between adjacent nodes as state parameters, this can make the model more complete and can improve calculation accuracy under low-flow system.

youdao

但是传统的微分等价递归算法精度低，并且利用数值差分来求解等价失效模式，计算量大。

But its computational accuracy is low, and the computational quantity is large when numerical difference is used to solve the equivalent failure mode.

youdao