1) fractional precipitation
![点击朗读](/dictall/images/read.gif)
分段沉淀
2) precipitating phase
![点击朗读](/dictall/images/read.gif)
沉淀段
3) precipitation separation
![点击朗读](/dictall/images/read.gif)
沉淀分离
1.
Applications of precipitation separation technologies in handling protein;
![点击朗读](/dictall/images/read.gif)
沉淀分离技术在蛋白质处理方面的应用
2.
This article deals with accurate content of the composition determined by means of acid alkali titration after precipitation separation to present a practical analyzing method for the small enterprises.
针对从事电镀生产的小型企业检测条件比较差的特点 ,从分析方法的实用性入手 ,将被测成份经沉淀分离后 ,采用常规的酸碱滴定法 ,测出被测成份的准确含
3.
A new method that the precipitation separation-high-pressure liquids colour spectrum (HPLC) for determining the dioctyl phthalate (DOP)in PVC plastics is suggested in this paper.
本文提出了测定PVC塑料中的DOP增塑剂的一种新方法——沉淀分离—HPLC法。
4) precipitation fractionation
![点击朗读](/dictall/images/read.gif)
沉淀分级
1.
It was found that precipitation fractionation could regulate molecular weight distribution.
系统地研究了PCS的流变性能以及对其熔融纺丝的影响;通过沉淀分级改善PCS的分子量及其分布,考察了沉淀分级过的PCS与未分级的PCS在纺丝性能以及所得SiC纤维性能上的差别;并在对PCS的软化点进行调节的基础上,利用IR、GPC、SEM等分析方法研究了PCS分子量及其分布对其可纺性的影响,然后在相同的预氧化、烧成条件下,考察了分子量及其分布对最终SiC纤维力学性能的影响;研究了纺丝温度、压力及卷绕速度对PCS熔融纺丝的影响;本论文首次提出以“软化点+熔融指数”作为简易判别PCS可纺性的标准;最后对PCS熔融纺丝进行了动力学模拟,得到纺丝线上丝条温度、直径的分布情况。
5) fractional precipitation
![点击朗读](/dictall/images/read.gif)
分步沉淀
1.
On the basis of theoretical analysis of chemical and physical properties of arsenic, the treatment processes of oxidation and co-precipitation and fractional precipitation and separation were proposed, it was proved through practice that the treatment process has achieved a satisfactory result.
对砷的危害、常规处理工艺的利弊进行了阐述 ,并在对砷的物理化学性质理论分析的基础上 ,提出了氧化共沉、分步沉淀分离的处理流程 ,经实践验证 ,该处理流程取得了满意的效果。
2.
The highly pure、superfine and monosize-distribution strontium titanate crys- talline particles have been synthesized by fractional precipitation, when titanium tetrachlo-ride and strontium chloride were used as raw materials and urea and sodium hydroxide asprecipitation agents.
用四氯化钛和氯化锶为原料、尿素和氢氧化钠为沉淀剂,采用分步沉淀法在低温下合成了高纯、超细、单分散性好的晶态钛酸锶粒子。
3.
The waste Ag-Cu contacts were dissolved in acid,then Ag~+,Sn~(2+) and Sn~(4+)in the solution were removed by fractional precipitation.
将Ag-Cu触点废料用酸溶解,再采用分步沉淀法去除Ag-Cu触点中的Ag+、Sn2+、Sn4+,抽滤后得到含CuCl2的溶液,然后采用液相还原法制备微米级铜粉(质量分数≥99。
6) fractional precipitation
![点击朗读](/dictall/images/read.gif)
分级沉淀
1.
The separation process for the polymer by the fractional precipitation using methanol was developed.
对以力化学方法得到的高氯化聚乙烯 -接枝 -甲基丙烯酸甲酯 ( HCPE-g-MMA)体系进行分离 ,建立了用甲醇分级沉淀聚合物的分离方法。
补充资料:东汉分段锦铜马
东汉分段锦铜马 东汉时期铜制品。1975、1976年,贵州兴仁、兴义东汉墓出土。铜马系分段铸造,装配而成。全马分头、耳、颈、身躯、尾四肢十一段。除两耳外,其余九段皆砂模空心铸造,装配接头为子母口,由十七个销拴固定。两耳及尾铸成子母口投合后,再涂上一种白色粘合料加以固定。从耳至足通高88厘米。昂首翘尾,左前肢提起,张嘴露齿作嘶鸣状。两耳直立,耳内涂朱。辱涂朱,上唇外残留有涂金痕迹,面具涂金。腹部丰满,臀部方圆,长肢,肘腋开豁,方膝,厚蹄,尾打结,这种分段铸造,镶接成形的铜马,在四川也曾出土过,但不多见。
说明:补充资料仅用于学习参考,请勿用于其它任何用途。
参考词条