countercurrent

Experimental Investigation of Two-Phase Countercurrent Flow Limit in Hydrogen Thermosiphon Loop of Cold Neutron Source

冷中子源两相氢热虹吸回路流动极限试验研究

High speed countercurrent chromatography ( HSCCC ) was successfully used for the separation and preparation of isomeric compounds.

应用高速逆流色谱法对同分异构体.分离纯化进行研究.

Ten compounds and one sterol mixture were isolated from Serissa serissoides by various chromatographic methods such as silicon gel column chromatography, Sephadex LH-20, high speed countercurrent chromatography ( HSCCC), assistant with traditional methods like extraction and recrystalization.

采用硅胶柱层析、Sephadex LH-20凝胶柱层析、高速逆流色谱（HSCCC）等分离手段结合传统的萃取、重结晶等方法从白马骨的乙醇提取物中分离得到10个单体化合物和1个甾醇混合物。

Study on Mechanism of flow pattern transition of steam-water countercurrent flow in horizontal tube

水平管内汽液逆流流动流型转变机理研究

Extraction factor is one of the most important parameters in optimum design countercurrent extraction technology.

萃取比是优化串级萃取工艺设计中的重要参数.

Multi-stage countercurrent extraction technology with 4 # solvent is ripe, and has been applied in practice.

四 号 溶剂的罐组式浸出工艺已经成熟, 并已经用于实际生产中.

The main factors for the separative effect of pH-zone-refining Countercurrent Chromatography are discussed in this paper.

文中着重探讨了影响pH区带逆流色谱分离效果的流动相流速、逆流色谱转速、溶剂组成、样品量和酸碱度等主要影响因素。

The countercurrent extraction and membrane separation developed recently are the cost effective chiral resolution technology for isolation of enantiotropic drugs.

逆流萃取和膜分离技术是近年发展的分离对映体药物或中间体的更为经济的手性分离技术。

An Investigation on the MTZ Theory of Ion Exchange and Adsorption in the Countercurrent Regenerative Fixed Bed

逆流再生固定床离子交换与吸附过程传质区理论探讨

C. Hsu Nandina domestica Thumb and Ephedra sinica Stapf. The optimum range of the partition coefficient values ( K) for solvent system of high speed countercurrent chromatography should be between 0.5-2. And there has two ways to calculate it.

高速逆流色谱溶剂体系的最佳分配系数在0.5～2之间。

Computing method of multistage continuous countercurrent decantation for leaching ore pulp

浸出矿浆多级连续逆流洗涤的计算方法A加权等效连续声压级

Countercurrent washing is applied to reduce acid pollution effectively.

摘要采用逆流洗涤方式有效减轻酸污染.

Countercurrent Chromatography is a newly-developed separation technology.

逆流色谱技术是一种新颖的分离技术.

Study on Heat Transfer in Inclined Vapor-Liquid Countercurrent Flow Condensation

倾斜式汽液逆流冷凝传热研究

Process of three-effect dynamic countercurrent extraction from Hedyotis diffusa

白花蛇舌草的三效动态逆流提取工艺研究

Research on Two-phase Countercurrent Flow in Reactor Hot Leg at the Loss of Coolant Accident

反应堆失水事故条件下热管段内的两相流逆向流动研究

A hot water distribution basin can be adopted for the countercurrent closed cooling tower.

本逆流闭式冷却塔可使用池式配水系统。

YLX Series Countercurrent Scrubber is used for the final washing of salt slurry.

YLX系列逆流洗涤器适用于盐浆的最终洗涤.

Pursuing for Ideal Continuous Countercurrent Flow Obstruction Rod Extractor

追求理想的连续逆流折流管式提取机

Two phase countercurrent flow in reactor hot leg at loss of coolant accident is studied by experiment and analysis.

对反应堆失水事故条件下热管段内的两相流逆向流动过程进行了实验研究和理论分析。

The separation ofm-chloroaniline and p-chloroaniline was carried out by countercurrent dissociation extraction ( CDE ).

逆流解离萃取通过套用萃取酸分离间氯苯 胺 及对氯苯胺.

Numerical Modelling of Countercurrent Flow under Accident Cooling Condition in NPP

核电厂事故冷却下逆向流的数值模拟

Countercurrent chromatography Seismic Profiles Show Lateral Gravitational Sliding Structures and Hydrocarbon Accumulation, and Account for the Maxi Contemporaneous Inverse Fault Instead of Reversion

反流层析，逆流层析从地震看重力侧向滑动构造与油气&兼论马西逆同生断层不是反转构造

The efficiency of floatation is improved by use of a new type of air floatation tank& vertical countercurrent floatation tank.

通过采用新型的竖向逆流型气浮池，提高了气浮的去除率。

Recent research progresses on high-speed countercurrent chromatography ( HSCCC ) were reviewed.

综述近几年来高效 逆流色谱 ( HSCCC ) 的研究进展.

Air is introduced at the bottom and act as countercurrent to fuel flow.

空气会在底部和作为燃料流逆流.

A study of the horizontal countercurrent diaphragmless chlorine and caustic soda electrolytic cell with air cathode

空气阴极氯碱电解槽采用水平式逆流无隔膜结构的研究

Application of dynamic continuous countercurrent circulatory extraction to Caulis spatholobi Trends

鸡血藤动态逆流连续循环提取工艺的研究

Investigation on Countercurrent Flow Characteristics in Vertical Tubes

竖直管内两相流逆向流动特性研究

Main features of countercurrent cooling tower are introduced, and its general significance is described also.

介绍冷却塔的主要特点及其可供借鉴参考之处.