- 更多网络例句与初步蒸发相关的网络例句 [注：此内容来源于网络，仅供参考]
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It,s allelchemicals were isolated through extraction, thin-layer chromatography, and column chromatograpathy. After the white clover was infused in ethanol and evaporation, the leavings was dissolved by water. The aqueous extract was extracted by petroleum,chloroform, ethyl acetate and n-Butanol successively, and the bioassay showed that the chloroform phase has obvious inhibitory effect, the inhibitory rate was 44.32%,88.08% on Abutilon theophrasti M., seedling length and root length, 82.08%,92.16% on Echinochloa crusgalli L., seedling length and root length, and the Amaranthus retroflexux L., germination rate is 0, the secondly was ethyl acetate phase.
运用萃取、薄层层析、柱层析等方法对白三叶草地上部分的化感物质进行初步分离，结果表明，白三叶草经乙醇浸提旋转蒸发后用蒸馏水溶解，依次用石油醚、氯仿、乙酸乙酯、正丁醇萃取，生物测定表明氯仿组分对杂草的抑制作用最强，对苘麻芽长和根长抑制率分别为44.32%、88.08%，对稗草芽长和根长的抑制率分别为82.08%、92.16%，反枝苋的发芽率为0；其次是乙酸乙酯相。
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The influence of those main design parameterssuch as evaporation saturation temperature t_s、heat dissipated power Q and charge ofworking fluid L on the temperature distribution of evaporation"s bottom and boiling heat transfer inside the evaporation has been calculated and analyzed concretely. The method that uses channels to enhance boiling heat transfer of evaporation"s bottom has also been analyzed and calculated preliminarily.
具体计算和分析了蒸发饱和温度t_s、散热功率Q和充液量L等主要设计参数对蒸发段底面温度分布和蒸发段内部沸腾传热特性的影响，对用槽道强化蒸发段底面沸腾换热也做了初步的数值计算和分析。
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This paper focuses on the fabrication of the film by the method of hot wire assistance chemical vapor deposition.
本文主要研究了热丝辅助裂解电阻蒸发法制备该薄膜的制备工艺，并采用红外、质谱和热重等分析方法对薄膜的成分进行初步分析。
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The cooling process involves complex droplet evaporation, strong convective heat and mass transfer, therefore a deep understanding of spray characteristics is essential to optimize the nozzle design and improve the cooling efficiency of the spray. This paper presents a theoretical model to describe the equilibrium evaporation process of a single droplet in cryogen spray.
为了深入了解制冷剂喷雾特性以提高冷却效率、优化喷嘴设计，利用质量传递数法推导传质方程，通过选取合适的阻力系数经验关联式建立了动量方程，考虑液滴蒸发以及与环境气体的对流换热建立了液滴能量方程，初步建立了单个制冷剂液滴平衡蒸发阶段蒸发冷却理论模型。
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A primary analysis is made on the mechanism of heat transfer in the evaporator zone of the heat pipe.
对热管蒸发区的传热机理进行了初步分析。
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The paper focuses on the tetraploidy black locust on Loess plaeatu of West Shanxi province, applys steady state promoter method and image processing technology to study the days transpiration water consumption in different weather ,different seasons and different site conditions,has primary analysis on the impact of environment on the transpiration and carries on the calculation to the tetraploidy locust tree by the single leaf water consumption to the single tree water consumption in CaiJiachuan watershed; Uses fast weighing method to measure and analyze the transpiration water consumption of five different herbs under the tetraploidy black locust forest (Capillary Wormwood,Vanilla,Agropyron Sristatum , Common Sowthistle and Medicago Sativa) in short time, in the same and different growcrop,and calculates the average transpiration water consumption per square metres ;the soil colome weighing method was used for determining diumal variation quantity of soil moisture evaporation, analyzing the dynamic variation and caculating the total quantity of soil evaporation water consumption from May to August ; then 5 kind of suppositions about the types of surface vegetation coverage are proposed in experimented site and the total evapotranspiration water consumption are calculated under 5 suppoitions ,aim at providing preliminary theoretic basis for ascertaining the transpiration water consumption of tetraploidy black locust forest,controling standing forest density and optimizing the forest grass deploy on loess plaeatu of west Shanxi province .
本文以两种不同立地条件下的四倍体刺槐林为研究对象，采用了气孔计法对蔡家川流域生长季内不同天气状况下(典型晴天、阴天和半阴天)四倍体刺槐日蒸腾耗水规律、不同季节(生长季初期、中期和末期)的蒸腾耗水规律、两种不同立地条件下四倍体刺槐蒸腾耗水比较以及影响四倍体刺槐蒸腾耗水的环境因子进行初步研究分析，并对四倍体刺槐由单叶耗水量向单株耗水量进行推算；采用经典快速连续称重法对四倍体刺槐林地生长的主要5种草本植物(白蒿、香青兰、冰草、苦苣和苜蓿)短时段内蒸腾耗水规律、不同生长季内蒸腾耗水规律、同一生长季不同种类草本植物蒸腾耗水量进行了比较分析，并且采用面积与重量比的方法推算出了单位面积四倍体刺槐林地几种主要草本植物平均蒸腾耗水量：采用土柱称重法测定了5月份～8月份土壤水分蒸发昼夜变化量、对试验期内土壤蒸发量动态变化作了分析、推算出了试验地5月份～8月份土壤蒸发耗水总量；对试验地地表植被覆盖类型提出了5种假设，推算出5种假设的情景下蒸散耗水总量，旨在为晋西黄土区四倍体刺槐林蒸腾耗水量的确定、林分密度调控以及林草优化配置等提供初步的理论依据。
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The silicone rubber membrane used in SRMBR is a polymer-made non-porous material. It is hydrophobe and non-permeable to inorganic salt, and has the high selective ethanol permeability. Compared to the conditional separation technology, the pervaporation through SRM has the advantages of low-cost and low-pollution, especially applicable to separating volatile matter from organic matter-water system or organic-organic matter system.
其中的硅橡胶膜作为一种均相聚合物材料无孔膜，具有不透无机盐成分、疏水和对乙醇有较高选择透过性等特点；与传统分离技术相比，硅橡胶膜的渗透蒸发分离过程具有低能耗、污染少等优点，尤其适用于在有机物-水或有机物-有机物体系中分离挥发性有机物组分，现已用于发酵下游产物分离处理的试验研究中，并取得初步成效。
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The result shows that well developed microbiotic crust results in less invalidation precipitation than sandy soil, but sandy soil conserves 18% precipitation in deeper layer when the soil covered with microbiotic crust had been dry completely.
结果表明，结皮和流沙地表的蒸发速率随时间的变化趋势基本相同，但在不同的蒸发阶段具有各自不同的特点，总的说来，发育良好的苔藓结皮导致相对较少的无效降水，但在更长的时间维持较高的蒸发速率；流沙和初步发育的降尘结皮导致了较多的无效降水，但由于降水的入渗深度相对较深，需要更长的时间完成蒸发过程。
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With the experiment of thin film deposition by vacuum evaporation techniques,a preliminary as- sumption that the object-oriented techniques could be applied in the visual simulation of materials design system is put forward in this paper.
结合真空蒸发镀膜实验，提出了一种应用面向对象技术实现可视化材料设计模拟系统的初步设想。
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The author have done numerous processing to work out new processing such as polymer coating and cure and triple - layer - metal film vaporing .
作者经过反复的工艺实验，确定了聚合物波导涂膜和固化、三层金属电极蒸发和腐蚀等新工艺的参数，并得到了聚合物紫外固化、等离子体刻蚀等新工艺的初步数据。
- 更多网络解释与初步蒸发相关的网络解释 [注：此内容来源于网络，仅供参考]
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pre-established allowable deviation：预定允许偏差
pre-equilibrated aqueous phase 预平衡水相 | pre-established allowable deviation 预定允许偏差 | pre-evaporation 初步蒸发
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pre-established allowable deviation：预定答应偏差
pre-equilibrated aqueous phase 预平衡水相 | pre-established allowable deviation 预定答应偏差 | pre-evaporation 初步蒸发
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pre-evaporation：初步蒸发
pre-etching 预先腐蚀 | pre-evaporation 初步蒸发 | pre-intermediate frequency amplifier 前置中频放大器