查询词典 extraction

The separation and purification technologies of amino acid,such as: precipitation ,ion-exchange,extraction and membrane separation were reviewed.

总结了氨基酸分离纯化过程中常用的技术，如沉淀法、离子交换法、萃取法和膜分离法，介绍了各种技术的基本原理、特点和发展动态。

The traditional technology of preparing walnut protein with alkaline extraction and acid precipitation was improved to increase the purity of walnut protein.

对传统的碱溶酸沉法制备核桃蛋白的工艺进行了改进，以提高核桃蛋白的纯度。

Objective To Optimize the extraction process of Salvia acid from Salvia miltiorrhiza.

目的 优化丹酚酸的提取工艺，提高丹酚酸B的提取率。

A process based upon solvent extraction has been developed for the recovery of phosphoric acid from a leaching liquor obtained by decomposition of phosphate rock with sulfuric acid.

本文采用二丁基亚砜作为萃取剂，对于用硫酸分解磷矿而得的粗磷酸进行多级逆流萃取及反萃取，以获得高纯度的磷酸和磷酸盐。

The potassium and phosphorus extraction rates are studied for the reactive system consisting of natural potash feldspar ,phosphate rock and phosphoric acid,with the analysis on reactants and resultants by XRD and FTIR.

分析了钾长石、磷矿、磷酸不同组合反应体系的钾、磷溶出率，并用XRD和FTIR对反应物和产物进行了物相分析。

The extraction was carried out under acidic conditions.

多糖的提取是在酸性条件下实现的。

The results showed that acidification extraction was the control step.

结果表明酸化萃取步骤为工艺控制步骤。

Through the steps such as acidify, filteration, extraction , distillation and vacuum distillation, the product is seperated from compounds.

通过酸化、过滤、萃取、常压蒸馏和减压蒸馏等后处理手段，将产物分离出来。

The extraction behaviors of actinides and the main fission products by the above compounds were studied.

较为系统研究了该化合物作为锕系元素萃取剂对锕系元素和主要裂片元素的萃取性能。

A kind of automatic calculus method is used for the recognition and extraction of skeleton feature,in which some algorithms are used,such as the actinism amendment,fuzzy inference of feature,and edge detection.

运用感光度修正，特征的模糊推理和图像处理的边缘检测等手段，设计一种自动识别骨龄特征的骨龄计算方法。

This one mode pays close attention to network credence foundation of the businessman very much.

这一模式非常关注商人的网络信用基础。

Cell morphology of bacterial ghost of Pasteurella multocida was observed by scanning electron microscopy and inactivation ratio was estimated by CFU analysi.

扫描电镜观察多杀性巴氏杆菌细菌幽灵和菌落形成单位评价遗传灭活率。