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Professional qualities and skills of engineers need to be reinforced and we ought to conquer the anthropogenic factors.
The water supply section of the auxiliary boiler employs the method of dual control intermittent adjustment to keep the boiler water in the range of the setting water level.
The water source is mainly the water condensed by condenser or water coming from out of the system directly.
All steam forms steam-water mixture after heat exchange, and then it flows through the condenser in water subsystem to become water and flows to hot well to form the source of make-up water in boiler.
In consequence, we accomplish the circulation of from water to steam and then steam to water to fulfill the heating tasks.

At temperatures around 400 - 500°C, chemically bound water is released, Portlandite Ca(OH)2 is decomposed to calcium monoxide CaO and water.
After a rain it was found that there is no drainage of rainfall water and the whole examined area is under water.
After the rainfall water flew out, works of technical analysis began.
The first step of renovation of damaged floor in the industrial building damaged by fire was technical analysis of the structure with professional diagnostic methods.
High-speed water jet technology for renovation of concrete structures.

Unbalanced water supply-demand during development of mineral resources The most disastrous effects of mineral prospection on water resource is pollution; acid well water from ores together with wash water, sewage form explosive plant, coke oven plant and prospection of nonferrous metals results in that quality of water seriously exceeds national index, which aggravates imbalanced water supply – demand.
Green mineral industry shall be developed with serious consideration of environmental and water loads.
In addition, water assessment index and technical standards shall be decided to evaluate disturbance of ore to environment and the damage to the plantations.
The report causing serious damage to environment and consuming huge amount of water shall not be approved.
Geological and professional limits shall be broken to develop mineral group enterprises based upon assets, especially mining rights through coalition, adjustment and acquisition.

The multiphase system of oil, water, gas, and solids may form multiple types of scour corrosion, which mainly include cavitation corrosion, turbulent corrosion, liquid blob shock, gas bubble shock, and solid particle shock[1,2,3,4].
The water phase in the flow may wet the pipe wall.
In addition to corrosive component content, the proportions of oil, water, and gas in multiphase systems and the change of phase state may affect corrosion severity.
[3] Wan Renpu：Advanced Well Completion Engineering (Gulf Professional Publishing, U.S. 2011)

The Research and Preparation Method of the Wire Rod, Strip Galvanization Brightener SHI Lei1,a, ZHANG Fu2,b, CHEN Jiajun3,c, WANG Shilin1,d 1School of Materials Science and Engineering, Shandong Jianzhu University, Fengming Road, Jinan 250101,China 2Chaoyang teacher's college for professional training, Chaoyang,liaoning 122000, China.  3Room 302, Unit 1, Bulinding 8, No.231, Guangchangbei Road, Nanchang, Jiangxi 330000, China aslcqj@sdjzu.edu.cn, bzhangfu@163.com, cjjchen66@163.com, dwang-shl@163.com Keywords:wire rod; strip; brightener; sulfate galvanization Abstract.
(3) RO(CH2CH2O)3SO3NH4 as the carrier brightener of brighteners, its function is enhancing the cathode polarization of plating fluid, promoting main brightener which does not dissolve in the water disperses in the plating fluid evenly, to expand the luminous current density.
Experimental Material and instrument Electrochemistry work table constant temperature water-bath, scanning electronic microscope, Hall trough mixer Hall trough rectifier beaker electronic balance.
Brightener configuration: (1) Pour the computed and measured C6H5CO2Na into a little hot water (80°C), agitate and make it full dissolute; (2) Pour the computed and measured NNO expand medicinal powder into it, agitate and make it full dissolute; (3) Pour the computed and measured C10H10O and RO(CH2CH2O)3SO3NH4 slowly and separately into it, agitate evenly; (4) Add the computed and measured C6H5NO2, agitate and make it dissolute; (5) maintain about 70°C and stir more than 24h, then after settling 24h, filter it.

. , Watercraft driving simulator can be better to complete the transportation protection, tactical formation, the complex hydrological and meteorological conditions, navigation, narrow waterways collision avoidance training in subjects such as simulation training, and school culture vessels command of professional officers, noncommissioned officers, and an important content of the sailors[1].
The Function of Watercraft Simulator Manipulate a Variety of Hydrological and Meteorological Conditions Watercrafts: Select certain waters, realistic three-dimensional visual simulation of the ship to be able to achieve during the day, night, fog, rain, big storm sailing.
In a variety of complex hydrological and meteorological conditions (see Fig. 4), the trainees to manipulate and control the car, rudder, anchor, cable operations, and under complex conditions on the watercrafts manipulation and collision avoidance training, could show the navigation information, such as the rudder angle, heading speed, water depth and romantic elements, and have the appropriate alarm function.
The waters of the ship's radar image are shown in Fig. 5[5].

Reinforced concrete masonry, by the river bed changes and water erosion in the piers of the Great Tangqiao, serious erosion of pier foundation , 3 #，4 # pier concrete spalling , steel corrosion is severe , local vertical crack.
When examination in has not been selected by on the river water submergence river bed one side's second main arch ring 3 piece of arch ribs to carry on the carbonized depth examination, each piece of arch rib takes one to measure the area.
Bridge professional finite element software MIDAS / Civil finite element model of the structure , calculated under load structure control the displacement of the interface points , and strain parameters.
References [1] Guanhua Zhang, Double-curvature arch bridge structure special plant disease reinforces the processing method [J] Highway traffic science and technology. p133-138 2008 (9)(in Chinese) [2] Xinghua Huang, The double-curvature arch bridge dead load experiment and performance evaluation [J]Chinese water transportation p148-149 2010(3)(in Chinese) [3] Guangliang Bai, Some double-curvature arch bridge static dynamic test and reinforcement method [J] Railroad construction p39-42 2009(9)(in Chinese) [4] Jianhua Wang, Arch of bridge engineering test examination technology [M] BeiJing :China Communications Press 2004(in Chinese) [5] Xi'an Changda in Highway Engineering Test Center,Jinhe line of Hainan provice Datang bridg especial inspection , testing analysis[R] Xi'an Chang'an University(in Chinese)

The common problems in rotary drilling cast-in-place pile construction and cause analysis 1.1 Water emitting of steel casing.
The outer wall of the steel casing emits water.
Sometimes the water level decreases suddenly.
Choose and tamp clay which has the optimal water content when embedding the bottom and walls of steel casing; dig a hole in the proper height in the steel casing so as to retain 1-1.5m water head height within it; prevent the bit from hitting the steel casing in rise and fall; fill and tamp the steel casing with clay when it emits water for the first time.
During the construction process, professional technicians’ strict control and master of technology key points are needed, constant experience accumulation, further absorption of advanced technology and craft, guarantee construction quality, and ensure the process of a project and its economic profit.

An alternative to O/W emulsions is surfactant-water solutions, where the small amount of oil normally presented is dispensed with, leaving only a surfactant dissolved in water as additives [5-7].
Surfactants reduce the surface tension of water by adsorbing at the liquid-gas interface.
They also reduce the interfacial tension between oil and water by adsorbing at the liquid-liquid interface.
Being compared to the lubrication with water, the aqueous solutions with PEOE added are hardly affected by the water viscosity in film thickness, showing a different characteristic from oils.
Dowson: History of Tribology (Professional Engineering Publishing, London, 1998) [12] C.

Over the past few years, with the rapid development of the computer technology, Computational Fluid Dynamics (CFD) has been developed to becoming popular software to analyze the operation of devices under the water both in home and abroad.
To be more specific, a suitable model has been set in Fluent to imitate the real situation when the aquatics hub cutter is working under the water; and then choosing the model and SIMPLEC algorithm, which is a kind of standard in the FLUENT, to help to analyze and acquire the best simulated result.
Setting an aquatics hub cutter model Aquatics hub cutter is designed as a cylinder-shaped with three blades outside of the hub, and it is fixed on a rotating hub[6].The model of an aquatics hub cutter was set by professional software AutoCAD(shown in fig.1).
Water Power, 33(6),49-52,(in Chinese) [9] Minggao Tan, Houlin Liu, Xianfang Wu. (2008).