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
- 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。 - 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。 - Based on the raindrop spectrum data of different type precipitation over plateau border, this paper analysed the frequency, the duration of rainfall and the structure of the precipitations cell.
本文根据高原边缘山地各种类型降水的雨滴谱资料，分析了山地降水出现的频数、降水持续时间和降水云的单体结构。 - 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 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 - When it is at a low rolling temperature, the grains of precipitations will be finer.
轧制温度低时，析出相更加均匀细小。 - 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 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。 - 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。