用于在llvm里把静态load store 进行优化，把语句提到循环外面-Used in llvm where the static load store to optimize the statement referred to the outside loop

通过在馈电线上安装静态转换开关，满足关键负荷的不中断供电。-By installing a static transfer switch on the feeder, meet critical load uninterrupted power supply.

主要计算轴承的静特性参数，包括油膜压力和摩擦和功耗(The static characteristic parameters of bearing are mainly calculated, including oil film pressure and friction and power consumption)