The optimal control of minimalperiod on the changing order set can be transferred into the calculation for problem of trip salesman, and the optimal arrangement is a special optimal control.
变序集上周期最小的最优控制可以转化为一个求解旅行推销员问题，而最优调度恰好是一类特殊的最优控制。
2
One advantage of pitfall traps is that they can be used to collect over a period of time with minimal maintenance and intervention.
陷阱的一个优点是可以在一段时间内用最少的维护和干预进行收集。
3
Half of the increase took place in the 2003-07 period when global growth was strong and credit concerns minimal.