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。
Combined with the construction of the pass of Donghai road in Qingdao,the author discusses the comprehensive precipitation technology of the subsurface excavation of the pass of the urban main roads in Binhai district,detailedly introduces the application of the vacuum dewatering technology in the tunnel,to provide the reference for the similar projects.
结合青岛东海路过街道的修建,就滨海区城市主干道修建暗挖过街道的综合降水技术进行了探讨,并对隧道洞内真空降水技术的应用进行了详细介绍,以期为类似工程提供参考借鉴。
In combination with the barged-in fill subgrade treatment project with large area in a certain new town overlooking the harbor in Shanghai City, the paper tests and studies on the problem of strongly ramping consolidated barged-in subgrade with large area by vacuum dewatering with low energy.
结合上海某临港新城大面积吹填土地基处理工程,试验研究了真空降水联合低能量强夯加固大面积吹填土路基问题,对加固过程中及加固后的地下水位变化、超静孔压变化、工艺参数、以及加固机理进行了分析和讨论。
Reinforcement of soft soil foundation with hydraulic fill sand based on the method combined with dynamic consolidation and vacuum drainage;
吹填砂软土地基的真空降水强夯加固方法
When pressed air is injected into the soft foundation as vacuum drainage is being carried on,water in porous soils may be pushed out of the foundation through the pipes for vacuum drainage,which can obviously improve the efficiency of vacuum drainage.
真空降水方法广泛应用于软弱地基处理工程,积累经验丰富,但软弱地基往往渗透性较低,其降水效率难以满足工程施工的工期需求。
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。
ELO-Vac process
电炉真空脱碳脱气法
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