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有道
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百科
蒸发点 [zhēng fā diǎn]
vapour point
evaporating point
evaporating point
- 采用了统计学方法，对巢湖流域15个蒸发点20年（1981-2000年）的资料进行了分析，初步探讨了巢湖流域的蒸发量空间分布特征与地势、气温、风速、降水量等因子的关系，以及蒸发量在1年内的变化特征和年际变化趋势，试图说明研究时段内人类活动对区域蒸发量的影响。
Aiming at illustrating how the regional evaporation capacity was affected by human activities, this paper, by adopting statistics method, analyzed the materials covering fifteen evapotranspiration sites in Chao Lake Valley spanning twentity years from 1981 to 2000, and then explored the relationship between the features of spatial distribution of evapotranspiration and relief, temperature, wind velocity, the amount of precipitation and other factors, as well as on the characteristics of evapotranspiration variation within a year and the trend of its annual changes. - 本文依据试验数据,生产实践和理论相结合,对制盐蒸发罐的点腐蚀、缝隙腐蚀、应力腐蚀破裂性能和投资、运行效果进行论证,提出采用性价比进行选材,认为2507型双相不锈钢最适宜、具有良好的应用前景。
Based on experimental data and combining practice with theory,this paper elaborates the performance of pit corrosion,crevice corrosion,stress corrosion in the evaporator of vacuum salt making and the effect of investment and operation,proposing to select material based on the ratio of performance to price.It is concluded that duplex stainless steel 2507 is most appropriate and has favorable application prospect. - 得到的分析结果表明：当蒸发源半径和夹具高度的比值小于1/17时，蒸发源可以被视为一个点面源；大于1/10时，应当把蒸发源视为面面源进行考虑。
When the ratio between the depth of the spherical surface and the radius of the source surface is less than 0.5, the spherical source has little effect on films uniformity compared with the plane source, and when it is greater than 0.6, the influence of spherical surface source on films uniformity should be considered.
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