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At present, China's late stage of oilfield most mining has been reached, there is high water content, and produced low levels problems.
Polymer flooding is injecting a little high molecular weight polymer into water to increase the viscosity of the mobile phase, to reduce water phase permeability, to improve oil-water mobility ratio, to increase sweep efficiency, and to ultimately achieve the purpose of enhanced oil recovery[3,4].
As can be seen from change of viscosity and shear rate, because of intermolecular association of the polymer in water, initial viscosity and salt resistant have greatly improved.
Study on shear viscosity of different polymer Five kinds of polymer were placed in water, 5000mg/L NaCl, 10000mg/L NaCl and 15000mg/L NaCl solution, observing the variation of viscosity with shear rate.
Oxford: Gulf Professional Publishing, 2010, 5-10

That is why the repair of timber structures of the water fortress included also a reconstruction of the original ceiling system.
The top grey layer is formed from very gentle particles that could be removed by water – probably dirt.
The design of the reconstruction included specific recommendations for structural and chemical treatments and finally also professional consulting and continuous inspection of the process of the repair works.
A selection of timber suitable for the overall reconstruction as well as details demand experience and a careful and highly professional work.
Fresh coating should be wetted by water mist, typically 4 – 6 hours after application.

In recent years, with the development of the industrial production, a large number of industrial wastewater and domestic sewage is directly discharged into the river, causing a significant drop in the river water quality.
In turn, the polluted river water finally enters the gulf or coastal waters, resulting in a considerable impact on the ecological environment.
The offshore water pollution is one important environmental problem.
Each team shall organize to study new theories and advanced technology regularly; visit developed areas or urban areas with remarkable achievements; regularly screen pollution sources and master the latest information; hold the experience exchange meetings and seminars to exchange and summarize the work experience; set up the monitoring sections and points at Beidaihe and adjacent sea basin regions to conduct the dynamic monitoring on rivers formed from runoffs by the rainfall and on water quality change in offshore areas to master timely the water quality dynamic change and offer effective data for leaders to make decisions.
Based on each special team’s work and various professional teachers of Environmental Management College of China to offer corresponding supports in such respects as the personnel, knowledge, technology and communication etc.

Electric vehicle battery-swap station replaces battery for long mileage and charging not timely,charges the unloaded battery by the ground charging system,meets the technical,economic and operational needs.In this model,the crux of problem is ready battery storage space and how to realize quick and easy battery-swap.Because of the large weight of the battery pack and the professional requirement of battery-swap,the swap station needs to be equipped with professionals and specialized machinery to quickly replace the battery,charge and maintain.Using this model,the advantages are as the following: 1)Electric vehicle users can rent a fully charged battery,swap the depleted batteries,this methed can help to improve vehicle efficiency,and can improve user convenience and quickness; 2)Taking advantage of low down time to recharge the unloaded battery can reduce the charging cost and improve vehicle operation economic efficiency; 3)From another perspective,the program solved the problems of
In the early days of the design for electric vehicle battery-swap station,we should fully understand the local electric vehicle battery-swap station area,the target vehicle type and quantity,battery parameters and battery-swap models.The electric vehicle battery-swap stations in the later planning needs to be fully taken into account.Electric vehicle battery-swap station should be designed with local power grid load,it can rely on the 110kV and above substation and make full use of the land resources and transformer capacity of the substation.This design should meet the requirements of environmental protection and fire satety,rationally distribute the inlet and outlet corridors,water supply and drainage facilities,flood prevention facilities,the roads inside and outside,take advantage of nearby traffic,fire,drainage and flood prevention and other public facilities.

However, we all know the fact that the pressure and temperature are tend to hold in the hot water or steam pipe.
At this time, the high-temperature liquid water that comes from the crystal water in the a-gypsum molecule will necessarily go through an instant vapourization (professional name “vapour explosion”) when it comes into the normal atmosphere.
The liquid water that was once crystal water in the a-gypsum molecule will release instantly the moment the molecules split up.
Also, the water that contailed in the serofluid will vapourize instantly.
That is to say the water(or steam) in and out of the a-gypsum will all be seperated from the a-gypsum.

At present, GIS is applied extensively to the water industry, in areas such as flood control and disaster mitigation, water resource management, water environment monitoring and management, drought monitoring, and water and soil conservation.
The model incorporates major building data such as dams, plants, water-release structures, water area of the reservoir, massif around the dam, and geology of the dam foundation and abutment.
The interface should combine GIS maps with professional dam safety query and safety analysis functions.
A key technical problem of the system is related to superimposing and organizing spatial data and monitoring data to generate professional layers of monitoring information via graphical representation.
Advances in Science and Technology of Water Resources, Vol. 30, No. 5 (2010), p. 48 - 52.

They were tested for compressive strength after 7 and 28 days of water curing.
Consistency is a key parameter of the mortar, which is used to determine the amount of water building mortar.
With the same water-cement ratio, the consistency of the mortar decrease with powder content increases.
If ensuring the same consistency of the mortar, the water needed is also increasing as the powder content increases.
As the same water-cement ratio, the compressive strength increase when the content of LSP in sand become increasing

Model Selection of Cooling-Water Machine.
Through the temperature difference at the inlet and outlet of the cooling water (oil) to calculate calorific value (as Equation (15))
Selection of cold water chiller capacity can be properly increased to 20%-50%.
Cooling liquid is 3% water-based emulsion.
Mechanical Design and Theory Professional, Dalian University of Technology, 2013.

The fermentation product’s freeze-dried powder was grinded into fines, then 1.0 g of fines was weighed and placed into a beaker, and scattered with a volume of 50 ml distilled water, and then extracted with water bath at 75 ℃.
The sediment was centrifuged and washed with absolute alcohol, then dissolved into distilled water for determining by phenol-sulfuric acid method [9].
The fermentation tea was mixed with boiling water according to solid-to-liquid ratio of 1∶50, covered, and steeped for 5 min, then strained to get the fermentation tea infusion.
This paper is supported by the grants from the National Natural Science Foundation of China (No.31301544), Scientific Research Initial Fund from Jiangsu University for Senior Professionals (No. 12JDG078), Natural Science Fund for Higher Education Institutions of Anhui province (KJ2013A265).

In addition to the necessary management house, it’s no longer the establishment of other construction projects, reducing the base energy, land, water use, increasing efficiency, planting configuration woodland to replace lawn, native tree species to replace the foreign horticultural species.
Soil improvement, reconstruction of wetland system, forming a virtuous circle of water system, through microbial decomposition and aquatic plant purification, then the clean water come into the fish pond, finally into the pool.
The Transformation and Reuse of Abandoned Mine Pits Designers make mine water the different use for different quality.
For example, wastewater can be recycled as special chemical water.
The vegetation restoration and landscape regeneration of mining wasteland needs professional and technical support.