总降水量 meaning in Chinese

gross precipitation
total precipitation

The annual total rainfall of 300 mm seems somewhat low for the region at these latitude
就位于这些纬度的这一地区来说，年总降水量300毫米似乎少了一些。
Owing to the effect of landform , the precipitation in the second stage of rain season is decreasing from the line of jingnan - yongchun - fuding to the northwest and southeast , the spatial distribution characteristics of other three rainy seasons and all year precipitation are decreasing from northwest to southeast
除后汛期因受地形的影响，降水量由南靖-永春-福鼎一线向西北和东南两边减少外，其它三个雨季和年总降水量空间分布大体上是从西北向东南逐渐递减。
Distinct changing features of clouds after seeding were analyzed , then some significant conclusions are got . with the suitable seeding methods in proper time and region in clouds , precipitation is enhanced . and spacial distribution is changed , for example , position of rainfall center and intensities were significantly changed
研究发现不同催化剂对云体的影响各有其自身特色，但也有共同之处：在云体发展的合适时机和部位进行适量的催化，地面累积总降水量提高；同时有可能改变降水的空间分布，使地面雨量中心位置和强度发生改变。