Install the following packages on the Ubuntu 8.04 operating system of both the machine that will be your primary server (mach1) and the machine that will be your SD secondary server (mach2).

Taking the forestry economy system of Nanch 'a area in Heilongjiang province as an example, a system dynamics (SD) model is built, tested and analyzed based on structure analysis.

Use this movement type if you have not entered a customer order in SD. In the standard system, the movement is assigned to a cost center.