A new extracting agent of piperidine derivant was synthesized.

Studies on the extraction method of Thea Saponin by using anhydrous alcohol as the extracting agent

以无水乙醇为提取剂的茶皂素提取方法研究

This new method has changed the extracting agent of original phloroglucinol method, developing agent preparation is also improved.

改变了原方法中的溶剂抽提系统，显色剂的配方作了改进。

Preparation of composite extracting agent and extracting technology for UHMWPE gel-spun fibers

UHMWPE冻胶纤维复合萃取剂的配制及其萃取工艺

The recovery of the waste acid and extracting agent attained 95%.

净化酸和粗酚的回收率都在95%左右。

Study of new types of di tertiary amine ion associating extracting agent

双叔胺新型离子缔合萃取剂研究

The extracting agent is a dual mixed extractant, being made up of neutral extractant A and B having small water solubility.

混合萃取剂由水溶性小的中性萃取剂A、B组成。

Extracting the Strokes and Roots of Free Handwritten Chinese Character

自然手写汉字笔画和字根的提取

According to this theory, a calculator of extracting the roots of the algebraic equation is made by using C program, ( C++) Builder and Delphi.

根据这一理论设计出C语言程序，并且用C++Builder和Delphi作界面调用这一程序，设计出求解代数方程的计算器。

An generalized Newton iterative method for extracting the roots of a category equation

求一类方程重根的广义Newton迭代法

A new numerical method for extracting the roots of algebraic equations

代数方程求根的一个新的数值解法

Inflection Point and the Formula of Extracting Roots on Cubic Equation

拐点和一元三次方程的求根公式

Particle swarm optimization algorithm and its application in extracting roots of complicated chemical equations

微粒群优化算法及其在复杂化学方程求根中的应用

Optimization and retrofit of acrylic acid extracting tower in ethyl acrylate process flow;

脱氢醋酸的工业生产方法有双乙烯酮法和乙酰乙酸乙酯法。

Optimization and reforming of extracting tower in hydrogen peroxide device

过氧化氢装置中萃取塔结构的优化改造

Study on the concentration of Chinese herbal medicine extracting solution by nanofiltration

纳滤浓缩凉茶提取液研究

Research on Two Extracting Solution s for the Saline-alkali Soil

盐碱化土壤的两种提取液研究

At these conditions, the absorbency of extracting solution could reach 0.286, the extracting rate was 90.59%.

在此条件下所得浸提液的吸光值可达0.286，即每克干竹叶的浸提液中含有黄酮12.41mg，则可得浸提率为90.59%。

The volume ratio of 5% hydroxyl sodium: extracting solution 1:4;

5%氢氧化钠浸提液体积比1：4；

Heat exchanger's extracting core machine is important equipment which affects repairing efficiency and time.

换热器抽芯机是影响换热器检修效率和检修时间的重要设备。

The Main Body Metre Structure Design of New Type Heat Exchanger's Extracting Core Machine

新型换热器抽芯机主体金属结构设计