离子迁移谱仪的模拟程序，单个粒子在密闭空间内从腔室的一边在电场力的作用下走向另一边，期间经过空气分子的碰撞，经过的时间为结果-Ion mobility spectrometer simulation program, a single particle in a confined space to the other side of the chamber under the action　the side of the electric force, during the air molecules through collisions, the elapsed time for the results