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 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
• 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 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。
• 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 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。
• At present, one method by which GCM local and regional precipitations are estimated is statistical downscaling.
  目前，一种评估GCM模式局地和区域降水的方法是统计降尺度方法（statisticaldownscaling）。
• 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。
• With aging time elongating to 48h, the ternary precipitations enrich and grow.
  合金的时效时间进一步延长至48h时，合金析出的三元相发生聚集长大。
• XPS Study of Cu precipitations at the surface of crystalline Cu-Zr alloys after annealing in hydrogen
  Cu-Zr合金在氢气氛中退火后表面Cu沉积物的光电子能谱研究
• The changes of precipitations were not obvious with reducing precipitations in autumn.
  降水量的变化不明显，但秋季降水有减少的趋势。