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
双语例句
- Through successive monitoring and analysis of satellite cloud picture, rain detection radar data and conventional meteorological data as well as analysis of numerical weather prediction results, the quantitative precipitations of 12,24,48 h were forecasted.
预报处通过对卫星云图、测雨雷达、常规气象资料跟踪监测分析及数值预报产品的分析，完成了12、24、48h定量降水预报。 - 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 - Climate change of annual precipitations in western China
中国西部年降水量的气候变化 - The groundwater in Hebei plain is recharged from the precipitations.
河北平原地下水主要是由大气降水补给的； - 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。 - 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。 - 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。 - 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。 - Because of the different nature of precipitations, rain band shape of two process were different too.
由于降水性质的不同，两次过程中雨带的形状和移动各有特点。 - 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。