| s_script: Model | 可以被保存至文件的脚本模型对象 |
| S.script | create a new empty model for run S-system simulation |
| kernel | create a new S-system dynamics kernel module |
| environment | config the symbol environment for S-system kernel |
| bounds | |
| s.system | load S-system into the dynamics simulators kernel module |
| run | run simulator |
| snapshot | create a symbol data snapshot device for write data into file |