A new method for synthesizing 4,4′ dihydroxydiphenyl sulfone(Ⅰ) from phenol and sulfuric acid was studied,in which stepwise vacuum dehydration was adopted with supplementary addition of phenol.
以苯酚和硫酸为原料 ,采用分段真空脱水及添加适量苯酚的方法合成双砜S。
This article demonstratedvacuum infusing, vacuum dehydration andvacuum frying technology of conveniencefood.
本文对方便食品的真空浸渍，真空脱水和真空油炸技术，从食品加工原理，加工技术特点到加工设备等方面，以实验为依据，作了分析和研究。
Aiming at pavement concrete construction experience in road transformation project in Wuqiangxi hydroelectric station,it represents concrete vacuum dehydration construction preparation,technology,quality management and safety measures,which will perfect this technology and improve the pavement quality.
针对五强溪水电站道路改造工程路面混凝土施工实践,阐述了混凝土真空脱水施工准备、施工工艺及施工质量管理和安全措施,以完善该施工工艺,从而提高路面的质量。
Study on the influences of vacuum dewatering treatment on concrete strength;
真空脱水对混凝土强度的影响研究
Comparing research on the carbonation resistance of concrete by vacuum dewatering treatment and ordinary concrete;
真空脱水与非真空脱水混凝土的抗碳化性能比较研究
Effect of fly ash content on the carbonation velocity of concrete by vacuum dewatering treatment
粉煤灰掺量对真空脱水混凝土碳化速度的影响
Preparation of anhydrous cerium chloride by vacuum dehydration method
真空脱水法制备无水氯化铈的研究
concrete vacuum treatment
混凝土真空脱水处理设备
The application of GZL-200 vacuum dehydration oil-filter with high viscosity
GZL-200高黏度真空脱水滤油机的应用
Study on Thermostability, Rheological Behaviour and Vacuum Dehydration Characteristic of Honey;
蜂蜜的热稳定性及流变和真空脱水特性研究
Effect of fly ash content on the carbonation velocity of concrete by vacuum dewatering treatment
粉煤灰掺量对真空脱水混凝土碳化速度的影响
Study on Combined Microwave Vacuum and Freeze Drying of Fruits and Vegetables;
微波真空与真空冷冻干燥组合生产脱水果蔬
Fast startup-output deoxygenated water simultaneously with the vacuum pump turning on.
五．启动快——开机启动真空泵即出脱气水。
preserved by freezing and drying in a vacuum.
通过真空冷冻和脱水来保藏。
17 Mechanical dewatering processes include belt filters, pressure filters, vacuum filters, centrifuges.
机械化脱水工序包括：带状过滤，压力过滤，真空过滤，以及离心脱水。
Theory and Structure Research on Vacuum Belt Press Dehydrator of Oil Sludge;
含油污泥真空带式压榨脱水机理论及结构研究
The Research on the Related Technology of the Vacuum Belt Press Dehydrator's Design;
真空带式压榨脱水机设计的有关技术研究
Production of Low Oil Content Potato Chips by Vacuum Microwave-Vacuum Frying-Vacuum Microwave Dehydration Process
真空微波-真空油炸-真空微波三阶段联合脱水工艺生产低含油率马铃薯脆片
Resin was degassed using a vacuum and the winding carried out under vacuum.
树脂用真空脱气，并在真空下进行缠绕。
The vacuum takes off the angry aircrew including the vacuum takes off angry machine, vacuum pump and centrifugal pump.
真空脱气机组是包括真空脱气机、真空泵和离心泵。
The Comparison of the Effects of Hot-air and Microwave Pre-drying On Carrot Dried by Vacuum Freeze Drying
热风和微波预脱水对胡萝卜真空冷冻干燥节能效果的影响
PRACTICE AND RESEARCH OF NEW-TYPE VACUUM STRAP FILTER ON SUPER-FINE MAGNET CONCENTRATE DEHYDRATING
新型真空带式过滤机在超细铁精矿脱水中的研究实践
Technology of COG Desulphurization with Vacuum Carbonate Process
焦炉煤气用真空碳酸盐法的脱硫技术
The Research on Stress Testing for Deformed Part of Vacuum Degaslified Tower;
真空脱气塔受损部位应力测试与分析
