Relatively strong rainfall period and effectively continuous rainfall can make the echo intensity decrease greatly and remain the low index for a long time, and the visibility turns well.
较强的降水时段和有效的连续降水将大幅度消弱回波强度，并使其较长时间地维持在低指数状态，其相应能见度也大为改善。
The climatic index of floods and water loggings are usually the abnormal rainfall of a year or a certain period.
洪涝与湿害的气候指标常用年或某时段的降雨异常来描述。
Based on the weather data from 1996 to 2002, the correlation equation between disease index of potato virus Y (PVY) and the temperature and rainfall was established.
根据1996 ~ 2002年有关气象因素的数据，建立了气温、降水量与PVY病情指数的相关方程。
The results indicate that there is better relationship between the departure accumulation of the index STPNA (PNA teleconnection pattern of the North Pacific SST) and flood season rainfall in china.
结果表明：STPNA（海温的太平洋北美遥相关型）指数距平累积和与江淮流域夏季降水有密切的相关，与全国雨带的类型也有较好的联系。
The results show that SPMCP model is simple and accurate in calculation, and it provides a new way to predict the state of rainfall intensity index for the rainy season.
结果表明，叠加马尔可夫链预测方法计算方便，结果准确，可为雨季强度指数状态预测分析提供一种新的途径。
The influence of the soil shearing strength index on slope stability is recommended, and the inducing factor of rainfall on formation cracking and slip failure in the surface of slope is presented.
讨论了粘性土在不同固结状态下的强度指标变化规律，阐述了土的强度指标对滑坡稳定性的影响，以及雨水对滑坡崩塌滑动的诱发作用。
The distribution map of rainfall-induced flood at varied degrees is drawn based on index.
在此基础上提出全国降雨诱发山洪灾害易发程度分布图。
Different scholars put forward different index for rainfall erosivity on the Loess Plateau.
降雨侵蚀力指标就黄土高原，不同的学者提出不同的指标。
Different scholars put forward different index for rainfall erosivity on the Loess Plateau.
降雨侵蚀力指标就黄土高原，不同的学者提出不同的指标。
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