1·To gauge precipitation, they looked at tree ring widths in lower-elevation oaks, which grow faster in years with higher levels of rainfall.
而为了测定降水量，他们则对长在低海拔地区的栎树的年轮宽度进行研究，因为这些树在雨水比较充沛的年份长得更快。
2·The rainfall measurements are from the Multisatellite Precipitation Analysis, which is based on data from the Tropical Rainfall Measuring Mission (TRMM) satellite.
对降雨量的统计来自多卫星降水分析，基于TRMM（ Tropical Rainfall Measuring Mission 热带降雨测量任务）卫星的数据。
3·A 5 to 10 percent drop in rainfall in southwestern North America, southern Africa and the Mediterranean, among other precipitation changes.
北美洲的西南地区、非洲南部和地中海地区降雨量会减少百分之五到十，其他地域的降雨量也会有所变化。
4·Catch basins can help you deal with unusually large amounts of precipitation and rainfall, and in fact, most building codes call for them when large or heavily sloped properties are involved.
赶上盆地可以帮助您与降水量和大量降雨异常交易，而事实上，大多数建筑规范要求他们在大型或涉及严重倾斜的特性。
5·They also modified the precipitation at the transplant sites based on altered rainfall estimates.
根据预期的降雨量变化，他们还改变了移植地的降水量。
6·Rainstorm: generally refers to 24 hours of accumulated rainfall of up to 50 mm or more, or within the cumulative precipitation of up to 30 mm or more precipitation within 12 hours.
暴雨：一般指24小时内累积降水量达50毫米或以上，或12小时内累积降水量达30毫米或以上的降水。
7·Similar analyses have been done for today's extreme rainfall patterns (drought followed by deluge, not precipitation spread out evenly) and the retreat of arctic sea ice.
气候学家们还以同样方法模拟了当今发生的极端降雨型(干旱后随之而来的是洪水，而不是均匀分布的降雨)以及北冰洋的融冰现象。
8·When the operating time is constant, the plastic film cover of precipitation is decided by the rainfall duration and daily evaporation.
当操作时间一定时，塑苫的降水量由降水持续时间和日蒸发量决定。
9·The extent of vertical erosion increases with precipitation, rainfall intensity and soil infiltration rates, and different soil has different critical rainfall amount.
垂直侵蚀随降雨强度、降雨历时的增加而增加，不同土壤的侵蚀临界降雨量不同；
10·Seasonal changes in precipitation across the country, rainfall distribution is very uneven season. Precipitation in most parts of the country concentrated in the May to October.
降水的季节变化我国各地降水量季节分配很不均匀，全国大多数地方降水量集中在五月到十月。