您要查找的是不是：
- fire danger rating area 火险等级区
- With these inputs, the WFAS will be able to calculate a more reliable fire danger rating every five miles nationwide. 有了这些资料，WFAS将可计算出更可靠的火灾风险评比，全美精细度达每8公里。
- Assessment of Forest Fire Danger Rating Systems 森林火险等级预报系统评述
- regional forest fire danger rating 区域森林火险
- Today's fire danger ratings from the NFDRS are presented as maps in the Wildland Fire Assessment System (WFAS), developed at the Missoula lab. 今天，NFDRS的林火危险度预测则是透过密苏拉火灾实验室研发的荒野火灾评估系统（WildlandFireAssessmentSystem,WFAS），将结果绘制成地图。
- Research on prediction of grassland fire danger rating 草原火险等级预报研究
- Study on multi-index based adaptability evaluation method of regional forest fire danger rating 基于多指标类型的区域森林火险等级适应性评价方法
- Science, technology, and human factors in fire danger rating: the Canadian experience Stephen W. Taylor and Martin E. Alexander 科学、技术,和人为因素在火灾损害中的比率:加拿大的经验
- Meteorological Prediction of the Forest Fuel Moisture and Fire Danger Ratings 鄂西林地可燃物含水率及火险等级的气象预报研究
- fire danger rating assessment 火险等级评估
- forest fire danger rating 森林火险
- fire danger rating 火险评级
- Fire danger and fire disaster of ste el structures are introduced. 介绍了钢结构的火灾危险性、火灾灾害等;
- The Observatory also warns of thunderstorms, floodings, landslips, fire danger, strong monsoon and frost. 天文台也负责发出雷暴警告、水浸警告、山泥倾泻警告、火灾危险信号、强烈季候风信号和霜冻警告等。
- The Observatory also warns of thunderstorms,floodings,landslips,fire danger,strong monsoon and frost. 天文台也负责发出雷暴警告、水浸警告、山泥倾泻警告、火灾危险信号、强烈季候风信号和霜冻警告等。
- By the analysis of strain rate,it can be concluded that the pin can effectually intensify the strain rate of sizing and reduce the low strain rate area near the root of crew thread. 通过实验及理论分析,系统研究了取样剪切对管输原油流变性的影响,根据鲁宁线运行工况,计算了阀门节流剪切及过泵剪切时剪切率的大小。
- The experiment shows that the prescribed burning could be used in Quercus mongolica forest for reducing fire danger. 试验结果表明，在长白山林区蒙古栎林内，可以采用低强度火烧来降低火险。
- A fire danger warning is issued whenever the relative humidity of the atmosphere is below certain criteria and when the vegetation is dry. 当大气的相对湿度下降至某限度而草木又乾燥,就会发出火灾危险警告。
- A fire was burning in the grate. 火在壁炉中燃烧着。
- He took out a fire insurance policy for his house. 他为自己的房子办理了一份火险保险单。
