precipitation [prɪˌsɪpɪˈteʃən]

例句:

• an increase in annual precipitation
  年降水量的增加
  
• Techniques for controlling particulates include filtering, washing, centrifugal separation, and electrostatic precipitation.
  控制颗粒污染物的技术包括过滤 、 洗涤 、 离心分离 、 静电沉降.
  
• Guitar's experiments did not stimulate any practical study of the electrostatic - precipitation principle.
  吉他的试验均未能激起任何关于电收尘原理的实用性研究.
  
• The sparse precipitation is well distributed around the year.
  来自BBC
• The whole area has a summer maximum of precipitation.
  来自BBC
• Weather is the day-to-day temperature, humidity and precipitation.
  来自SA