Take two cases: since the tsunami, Sri Lanka's largest telephone company has started an early-warning system which would send SMS messages to every mobile phone in an area at risk of flooding.
举两个事例：海啸发生以来，斯里兰卡最大的电话公司已经启动了一个预警系统，后者将向处于洪水泛滥危险区域内的每一部移动电话发送短消息。
This paper deduces the equation of jamming airborne early warning radar with multi-jammer, simulates the target exposed area that multi-system joint jammers jam the airborne early warning radar.
推导了多部干扰机干扰空中预警雷达的干扰方程，仿真了多系统联合干扰机载预警雷达时目标的暴露区。
It provide wide area surveillance with longer early warning time than other common radar.
它能够提供大范围的早期预警且预警时间远远超出一般雷达。
This paper deduces the equation of jamming airborne early warning radar with multi-jammer, simulates the target exposed area that multi-system joint jammers jam the airborne early warning radar.
本文推导了多部干扰机干扰空中预警雷达的干扰方程，仿真了多系统联合干扰机载预警雷达，地空干扰系统掩护运动目标时目标的暴露区。
The scanning camera scans the concerning area and the staring camera tracks the found targets, when the early-warning satellite is on-orbit.
预警卫星在轨工作期间，星载扫描相机将对关注区域进行南北往复扫描，凝视相机对发现的目标进行跟踪探测。
Combining with the current situation of the field investigation, and basing on the second grade border, we assign the polluted area to be the early warning district of soil heavy metal pollution.
结合野外实地调查现状，以二级边界为基础，将污染区域划为土壤重金属污染预警区。
Assuring access to safe water and primary healthcare services is crucial, as are surveillance and early warning to detect epidemic-prone diseases known to occur in the disaster-affected area.
确保清洁的饮水和基本医疗服务是很关键的，同样关键的还有对受灾地区易发疾病的监控和预警。
Assuring access to safe water and primary healthcare services is crucial, as are surveillance and early warning to detect epidemic-prone diseases known to occur in the disaster-affected area.
确保清洁的饮水和基本医疗服务是很关键的，同样关键的还有对受灾地区易发疾病的监控和预警。
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