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For example, dragonflies need the aquatic plant growing in proper water depth so that their larvae can climb and outgrow; some water birds, one the one hand, like building nests near water, one the other hand, they like rest on the revetment with no plants and seeking food in the water.
As the professional in the development, landscape design in the conservation of biological diversity plays a decisive role in the environment.
Control on water level The control on water level not only benefit the water landscape management, but also the sensitive control on water level is the simplest and most effective tool to govern the wetland plant.
In winter, the island over the water surface can accommodate the wildfowl.
Burning The controlling method of burning is often used to manage the zoological marsh and puddles of water in the water landscape.

As indicated in "Yellow Book of the international situation", in recent years, drinking water crisis caused by water pollution has accounted for a large ratio of China's man-made disasters .Over 140 water pollution cases have been taken place in China since the benzene contamination of the Songhua River in 2005 , about one water-related pollution case every two or three days.
According to the statistic data, about 60% of Yangtze River, China's largest river has been polluted.The water quality of yellow river, the important water source of north China is also deteriorating, about 40% of which has lost its function.
Excessive discharges of industrial wastewater and lack of urban sewage treatment facilities are regarded as the main source of water pollution.
First, inadequate qualification of environment authority officers such as lack of practical experience in law enforcement, inadequate understanding of legal knowledge, fear of difficulties in law enforcement , lack of the overall version sectoral interests or local interests, weak responsibilities, or even violation of professional ethics, dereliction of duty, trading power for money limits the enforcement effect.
China's newly revised "Water Pollution Control Law" stipulates that enterprises will be fined one million at most for illegal wastewater discharge.

The SEEA 2003 further subdivides natural resources into four categories: mineral and energy resources, soil resources, water resources and biological resources.
We have confined natural resources on mineral and energy resources and water resources.
That is to say, resource products should include fossil fuel products, non-metallic mineral products, metallic mineral products and water product.
production 4601 tap water production and supply 4601 Table 2 Production activity of recycling products and substitution products product name Product code Industry Industry code secondary copper 3311040000 copper smelting 3211 secondary aluminium 331604 aluminum smelting 3216 secondary zinc 33120402 lead and zinc smelting 3212 secondary lead 3312020200 lead and zinc smelting 3212 secondary nickel 3313040200 cobalt and nickel smelting 3213 wind power 4401010400 solar power generation 4415 solar power 4401010500 wind power generation 4414 Table 3 Production Activities of Other Resource Connected Products Product code Product name Industry code Name of the industry 7502110000 the service of energy science and technology research 7502 services of Engineering and technology research and experimental development 7502030000 the service of material science research 7502 services of Engineering and technology research and experimental development 760509 product characteristics test services
7450 quality technical services 760606 natural ecological monitoring service 7462 ecological monitoring 780101 geology exploration of Energy and mineral resources 7471 geological exploration of energy and mineral Resources 780102 geology exploration of metallic ore 7472 geology exploration of Solid mineral 780103 geology exploration of non-metallic mineral 7472 geology exploration of Solid mineral 7702 technology service 7513 services of New material technology promotion 7702 technology service 7514 services of energy saving technology promotion 7702 technology service 7519 other services of technical promotion 8405029900 other professional skills training service 8291 service of professional skills training 930304 management services Social affairs 9124 management institutions of Social affairs 930305 management services of Economic affairs 9125 management institutions of Economic affairs 930307 administrative supervision services 9126 administrative agencies of supervision and

Introduction Dam is a hydraulic engineering building that partitions off a watercourse or water mass by a septum for lifting the water level.
The chart of water level’s changing Marks on the chart show the process of water level's measurement by developed controller.
The chart shows that as long as the water level does not change dramatically, the system takes measurements by default, but when the water begins to increase or decrease, frequency of polling also increases.
Yadava, Water Resources System Operation: Proceedings of the International Conference on Water and Environment, Allied Publishers, Bhopal, 2003
Stevens, UNIX Network Programming, vol. 2, third ed., Addison-Wesley Professional, Boston, 2004

Second, the current domestic aquaculture water quality monitoring is still basically performed in the artificial sampling and chemical analysis of monitoring, time-consuming, low accuracy, and need for operating by professional personnel.
In the figure:1,obstacle avoidance device; 2,meteorological device; 3,communication module; 4,navigation device; 5,battery; 6,the central control module; 7,hull; 8,drive device; 9,the water flow measurement device; 10,underwater detection device; 11,water quality parameters detection device; 12,water quality monitoring controller; 13,electric rotaryⅠ; 14,bracket; 15,steering device; 16,automatic bait casting device; 17,electric rotaryⅡ; 18,electric rotaryⅢ.
quality parameters detection device equipped with automatic water quality sampling and detection device which is connected to the water quality monitoring controller can collect water samples and detect water quality parameters such as water dissolved oxygen content, pH, temperature, ammonia nitrogen content salinity and etc.; the automatic bait casting device including electric rotary Ⅲ which is driven by a motor and bait casting machine fixed on the electric rotary Ⅲ is installed in the bow of the workboat, and the automatic bait casting device can control the bait casting direction by adjusting electric turntable Ⅲ.
The water quality parameters detection device equipped with T, pH, DO, NH3-N and S sensors can detect water quality parameters such as water temperature, pH, dissolved oxygen content, ammonia nitrogen content and salinity; the automatic bait casting device is driven by a control platform, and the automatic bait casting device can control the bait casting direction by adjusting electric turntable Ⅲ.
ARM11 equipped on the aquaculture workboat can detect the biological population distribution in the water by underwater detection device and water quality parameters detection device and provide sailing or operation information for the workboat.

(7) Water reducing agent (SP): The water reducing rate is 30%, and it meets the requirements of “Concrete Admixture” (GB8076-2008) and “Polycarboxylic Water Reducing Agent” (JG/T223-2007)
(9) Water (W): The water meets the criterion of “Standard of Water for Concrete” (JGJ63-2006).
It is because that limestone powder with fine particle and smooth dense surface, which scattered between the cement particles, plays the role of deflocculant in the hydration of cement, which makes the fluidity of SCC improved [8], and T50 tends to decrease as well as T700L; What’s more, the fine powder makes the volume ratio of powder to water of the concrete increased, so, the segregation and weeping reduce obviously and BJ reduces gradually.
But with the increase of the limestone powder, it needs to absorb more water, and the density of paste increases, the fresh concrete becomes sticky, which makes the slump flow decrease and BJ increase.
The hydration of cement is accelerated by limestone powder at early ages, and the water of the cement paste is consumed too quickly, so the early-age shrinkage of SCC is larger with mixing more limestone powder.

The J-lay methodology is the prime technique for laying pipelines in very deep waters.
The J-lay tower is equipped with tensioners or collars holder, which is used to hold the suspended pipeline in water.
Reel-lay is Suitable for shallow to ultra-deep waters, and has a very high production rate.
China has several S-lay vessels, but they are only suitable for shallow water.
References [1] Boyun Guo,Shanghong Song: Offshore Pipelines, gulf professional publishing (2005)

The surveys also revealed that most professionals are resigned to the fact that they will not be able to access complete information, and that they will more than likely have to conduct a site inspection so that it is possible to recreate drawings and reverse engineer the building.
The missing link here is the fact that, even with cloud computing, design professionals will still not be able to determine what information has already been produced without first tracking down the owner of that information.
Maps of utilities, such as water and power, can be used to design these services within a building, and then the additional demands on those utilities due to that design could be predicted by the Building Information Model.
For example, a water authority may only wish to grant a private organisation access to a view-only image of a network such as a PDF.

Water Quality & Treatment: A Handbook on Drinking Water
Environmental nanotechnology McGraw Hill Professional
Theory of water filtration.
Water Research, 28(1), 91-106
Coagulation and flocculation in water and wastewater treatment Intl Water Assn

The water was injected from the top of reactor and drained 8 L every cycle.
Water &Wastewater Engineering , 2003.29(3): 22-26
China Water &Wastewater 2004, 22(7): 533-563 [3] Li J, Garny K, Neu T, He M, Lindenblatt C, Horn H.
Water Science and Technology, 2007, 55(8-9): 403-411
The Monitoring and Analysis of Water and Wastewater[J].