No single group looks capable of securing permanentcontrol of the border.
没有哪个团体看似能够保证永远控制边境地区。
2
Through analyzing the monitoring results of sand storm, it's thought that it's unable to bring sand storm under permanentcontrol.
因此，正确认识沙尘暴的来源、路径、危害现状和产生的原因，对今后制定防治沙尘暴的思路和措施极为重要。
3
The permanentcontrol of the outputs as described here constitutes the main difference between Risk Analysis and Risk Management and is essential to its efficiency.