The nation-wide problems in most relation to us are water pollution, Lang crisis and falling of acid rain.
其中全国性的 ,与国人关系最密切的主要问题是水体污染、土地危机和酸雨沉降 。
Three-step correction of error of rainfall remote measuring with consideration of rainfall center;
考虑降雨中心的遥测降雨三步修正