system run系统运行systemn.系统；体系；身体；制度system of levying business tax商税征收制度system communication locations系统通信单元system of finance and taxation财税体制system construction of courses课程体系建设System of Rice Intensification强化栽培system with unknown parameters参数未知系统system of orthogonal functions正交函数系System Think for Process Shift系统思考的流程改造system of variational equations变分方程组system of reward and punishment奖惩制度