It is discussed for the effect of types of surfactants and concentrations, alkaline concentrations, salinity, polymer, crude oil fractions, bivalent cation, non-ionic surfactants on interfacial tensions.

With the action of some bivalent cation, high temperature shift catalyst has been prepared by mixture precipitation method using open-hearth dust as a raw material.

利用钢铁厂平炉尘制备中温变换催化剂，制备成本低，工艺简单，活性达到部颁标准，具有明显的经济效益。

Atomic States of Bivalent Atom and Their Number

二价原子的原子态及其原子态数研究

A hard ferromagnetic silver-white bivalent or trivalent metallic element; a trace element in plant and animal nutrition.

一种二价或三价金属元素，坚硬的银白色铁磁体，植物动物营养中的微量元素。

A heavy silvery toxic univalent and bivalent metallic element; the only metal that is liquid at ordinary temperatures.

银色有毒金属元素，重，单价或二价，唯一一种在常温下呈液态的金属。

A soft bluish-white ductile malleable toxic bivalent metallic element; occurs in association with zinc ores.

一种有毒的二价金属元素，软质、蓝白色，有延展性，与锌矿石共生。

A light strong brittle gray toxic bivalent metallic element.

一种灰色有毒的二价金属元素，轻质、坚韧、易碎。

Objective To establish a kind of rapid and simple biuret method for measuring cerebrospinal fluid protein of automatic analyser.

目的在全自动分析仪上建立一种快速简便的脑脊液蛋白双缩脲测定法。

In this experiment, the content of protein was assayed by biuret method and Kjeldahl determination.

采用凯氏定氮法和光谱法分析测定完达山奶粉系列中蛋白质的含量。

Spectrophotometric Determination of Cereals Proteins by the Biuret Method

缩二脲法测定谷物蛋白质

Spectrophotometric Determination of Beans and Cereals Proteins by the Biuret Method

缩二脲法分光光度测定豆类和谷类蛋白质

Dual-wavelength automatic analysis of cerebrospinal fluid protein with biuret method

双缩脲双波长自动分析法测定脑脊液总蛋白含量的临床应用

Using Biuret method to mensurate total protein;

用双缩脲法测定总蛋白（TP）；

The Biuret Method for Total Protein of Serum Assay with Double Reagents

双剂型双缩脲法测定血清总蛋白

Syntheses of the Copper Complexes of Biuret by Solid Phase Reaction with Microwave Irradiation

微波辐射固相法合成缩二脲铜配合物

It was very important to establish the fast method to determine the peptide content in the milk powder, and it was the first time to finish the method by using Biuret Reaction in this paper.

在进行工艺研究之前，建立准确快速的测定奶粉中肽含量的方法，是首要的工作，也是本课题的核心内容之一，同时是指导生产、制定企业标准的必要步骤。

Its ninhydrin reaction was negative, but after acid hydrolysis, its ninhydrin reaction and biuret reaction were positive.

茚三酮反应呈阴性，用酸水解后茚三酮反应和双缩脲反应呈阳性。

Results The results of the biuret reaction and ninhydrin reaction were positive.

结果茚三酮反应和双缩脲反应呈阳性，海生素注射液中氮含量不低于0.4mg。

The Bitwise Exclusive OR Operator and its Application to Strategy for Playing

按位异或及其在求解游戏策略问题中的应用

The bitwise AND operator (&) produces a one in the output bit if both input bits are one;

若两个输入位都是1，则按位AND运算符（&）在输出位里生成一个1；

Just a side note, there is also a bitwise operator you can use if you want to trace everything except a certain component.

另外提醒一点，如果想跟踪除了某个组件之外的所有组件，还可以使用另一个位操作符。