precipitation的例句大全

Research on preparation of molybdenum disulfide nanoparticles by homogeneous precipitation method

均匀沉淀法制备纳米二硫化钼粉末的研究

The shortage of water is very serious and water-reducing trend is evident in Mu Us Desert: the precipitation can't meet the need of dry agriculture;

毛乌素沙地缺水严重，贫水化趋势明显：降水量远远不能满足旱作农业的需求；地表径流日益减少，甚至断流；

This work mainly focuses on: ( 1) A series of phosphate catalysts have been prepared by precipitation method and sol-gel method respectively. The effects of preparing method, materials, conditions of drying and calcination on the properties of the catalysts have been investigated.

本研究主要包括以下内容：（1）分别以沉淀法和溶胶-凝胶法制备磷酸盐系列催化剂，考察了制备方法、原料、干燥、煅烧等条件对催化剂性能的影响。

The Method of Metal Diffusion Coating by Means of Precipitation in Gas Phase through High Pressure Deaeration

高压排气气相沉积渗金属

Prove through the practical application of 4 years: The rate of accuracy is up to 75. 9%, it can yet be regarded as a good method of predicting precipitation of short-term climate.

通过4年的实际应用证明：准确率达75.9%，它不失为短期气候预测降水的一个好方法。

A study on Purification of monoclonal antibody by caprylic acid precipitation

辛酸沉淀纯化单克隆抗体的研究

Ascites were purified by caprylic acid ammonium sulfate precipitation method.

采用辛酸／硫酸铵法纯化腹水。

One Simple and Efficient Method for Purification of IgG McAb from Mice Ascites: Caprylic Acid/ Ammonium Sulfate Precipitation

一种简单实用纯化腹水McAb方法&辛酸/硫酸铵法

The experimental results show that by combining rare earth modification with heat treatment the eutectic carbide network changes into carbide piece and precipitation of granular carbide are accelerated as a result deferring crack forming time and reduce crack propagation speed and increase the impact fatigue resistance effectively.

结果表明：稀土与热处理复合作用，可加速网状共晶碳化物向孤立块状的转变，促进粒状碳化物的析出，有效地推迟裂纹产生的时间，降低裂纹扩展速率，提高其冲击疲劳抗力。

Research on crystal control of barium carbonate by homogeneous precipitation method

均相沉淀法制备不同晶形碳酸钡的研究

The mean generating function field model is applied to the precipitation prediction in rainy season and rainfall in May of Yunnan province.

将均生函数场预报模型用于云南汛期雨量及5月雨量预报试验。

PVY were purified with the procedure including PEG precipitation and differential centrifugation.

将PVY毒原摩擦接种于白肋烟扩繁后，采用PEG沉降及超离心的方法进行病毒的提纯。

Methods 34 cases of normal human ligamenta flava were determined by salt precipitation, the collagen samples were analyzed by SDS-PAGE.

方法用盐析法对34个正常黄韧带标本中的Ⅰ型和Ⅱ型胶原含量进行测定，并用SDS-PAGE法进行胶原的分型确定。

Precipitation has obvious seasonal wind direction changes.

降水风向有明显的季节变化.

The results show that the reactor core can be cooled and boron precipitation can be prevented during the cold leg recirculation or both of cold and hot leg recirculation using low head injection system ( LHIS).

分析结果表明，低压安注系统在冷段注入再循环和在冷、热段同时注入再循环时能保证堆芯冷却，并防止硼酸结晶。

Methods In vitro, the viscosity and precipitation time of the Eudragit mixture at various concentrations were measured to find the best proportion of the embolic agent.

方法配制不同浓度的甲基丙烯酸共聚物混合液，测定其粘性和沉淀时间，寻找此栓塞剂的最佳浓度配比。

Precipitation of oxygen and carbon in buk dislocation-free CZ Si annealed at450 ℃, 700 ℃ and 1050 ℃ has been studied using infrared absorption, X-ray topography, X-ray anomalous transmission, AES and HVTEM.

利用红外吸收、x射线形貌照相、x射线反常透射、俄歇电子能谱和高压透射电子显微镜研究了在450℃、700℃和1050℃热处理后无位错CZ-Si单晶中的氧、碳沉淀。

Studies on the precipitation of ammonium uranate from fluorin contained

含氟体系中重铀酸铵沉淀过程的研究

Precipitation mechanism of ammonium uranate and relative process selection

铀酸铵的沉淀机理和工艺选择

P_ ( t-1) the precipitation in last year ( mm); General Contents in 2003

P（t-1）为上一年的总降水量（毫米）；2003年总目次