precipitations

英 [prɪˌsɪpɪˈteɪʃənz]

美 [prɪˌsɪpɪˈteɪʃənz]

n.  降水，降水量(包括雨、雪、冰等); 沉淀; 淀析
precipitation的复数

化学

双语例句

• The factors affecting iron precipitations as jarosites were studied.
  本文研究了黄铁矾法除铁速度的影响因素。
• The theoretical frequency distribution of the annual and monthly precipitations in Shanxi Province
  陕西省年、月降水量的理论频数分布
• The microstructural characteristics of main precipitations and the interactions among the various precipitate species in 2090 aluminium-lithium alloys aged 190 ℃ have been examined using transmission electron microscopy.
  本文利用透射电镜技术（TEM），对190℃时效条件下，2090铝锂合金中主要脱溶相的组织特征以及相间的交互作用进行了分析研究。
• Meanwhile, no segregation of S, P, C trace elements occurs in grain boundary, but a Ni-depletive and Cr, Mo-rich region is formed. These indicate that the grain boundary composition change impairs the effect of the grain boundary precipitations on hydrogen embrittlement.
  晶界上未发现S、P等痕量元素的偏聚，却产生了富Cr、Mo而贫Ni层，这表明晶界成分的变化减弱了晶界析出物对氢脆的影响。
• The yearly variations of seasonal precipitations in winter and spring were quite consistent with each other.
  冬春季降水量的逐年变化存在显著的同相关系。
• The interdecadal variation of summer precipitations in China and the drought trend in North China
  我国夏季降水的年代际变化及华北干旱化趋势
• It is manifested that in single pass weld metal there are no copper precipitations, but in heat affected zone there are some ε-Cu precipitations and the distribution and size of the precipitations are not uniform.
  研究结果显示，单道焊焊缝金属中铜难以析出，在多道焊道间热影响区有εCu析出颗粒的存在，但析出颗粒尺寸与分布存在不均匀性。
• Climate change of annual precipitations in western China
  中国西部年降水量的气候变化
• Spectral analysis of pulse trains and the method for converting the results of radar measurement into the micro-physical or kinematical properties of clouds and precipitations are also discussed.
  文中还讨论了脉冲波列的谱分析问题，涉及了如何根据雷达测量结果去推断云和降水的微物理或运动学状况的问题。
• By analyzing and calculating the effective precipitations, irrigation water yield and utilization ratio, and crop output during the growing period of wheat and corn, the writer expounds how to make full use of effective precipitations to make an appropriate irrigation and improve its benefits.
  通过对小麦和玉米生长期间的有效降雨量及灌溉水量、灌溉利用系数、灌溉水量及作物产量的关系分析计算，阐明了有效降雨量，充分利用有效降雨量合理进行灌溉，提高灌溉效益的方法。