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(5) Processing: The corresponding treatments can be done according to the classification results, including：cleaning, repairing, storing and selling the recyclable parts which can be directly reused; selling remanufactured parts to remanufacture enterprise; selling the recyclable material to steel plants etc; and the useless waste can be landfilled by the professional enterprise. 2.3 The structure model of reverse logistics system The structure model of reverse logistics system is shown in figure 1. 
Fluid pollutant is due to liquid waste such as gasoline, diesel, lubricating oil, brake oil, antifreeze oil, explosion-proof agent, air conditioning liquid, waste battery electrolyte (acid containing waste water) and other materials are not fully recycled. 
Table 2 The weights of evaluation indicators Level 1 indicators Weights Level 2 indicators Weights the environmental indicator (B1) 0.255 dust Pollutant (C11) 0.093 liquid Pollutant (C12) 0.292 solid Pollutant (C13) 0.615 recyclable utilization indicator (B2) 0.627 parts reuse rate (C21) 0.333 materials reuse rate (C22) 0.667 the economic indicator(B3) 0.118 recycling technology (C31) 0.072 man-machine cost (C32) 0.301 recycling efficiency (C33 ) 0.627  3.4 The application example The renewable resources company in Chongqing is a professional enterprise which is engaged in scrapped automobiles and materials dismantling and recycling.

For this analysis, we have use the Autodesk Inventor Professional and Autodesk Moldflow Adviser products.
The cooling system uses water delivered at 25ºC, with a flow rate of 8 l/min, which is distributed along a channel network with a 8 mm diameter.
Hanser, Munchen 2007) [5] ***, Autodesk Inventor Professional User’s guide, (2019) [6] ***, Autodesk Moldflow User’s guide, (2019) [7] http://www.custompartnet.com/estimate/injection-molding/

The book is divided 7 chapters that intend to be a resume of the current state of knowledge for benefit of professional colleagues, scientists, students, practitioners, lecturers and other interested parties to network.
In Chapter 5, Santos Filho et al. presents influence of additives on hybrids membranes morphology for water treatment.

In most of colleges and universities, there are little fund to purchase the newest equipment of building electricity, little space to construct building electricity laboratory while experiment of building electricity can train students professional understanding and ability.
Student can be familiar with the new technology after intelligence building experiments and have advantages in their professional life.
Because some sets of equipment are expensive, students can not see and understand directly components inside equipment without professional guidance.
If equipment fails, they will not know how to process in their professional career.
The intelligence building experiments include experiments of water supply and drainage control system in building, experiments of power supply and lighting control system, experiments of air condition control system, experiments of elevator control system, experiment of field bus control system ( LonWorks, BACnet) and experiment of fire control system.

., LTD,Shandong,276826,China a18906335576@163.com,bhchwang6031@163.com,crzptxuxiquan@163.com, dshenshurng@126.com Keywords: High performance water reducer,Cement fluidity,Concrete slump.
Introduction Application of poly carboxylate super plasticizer has become the future development direction of the reducing agent,as the macro monomer of downstream products of ethylene oxide, it has formed a stable market demand gradually in the process of industry adjustment.So the application of the poly carboxylate super plasticizer will gradually get rid of price.The poly carboxylate super plasticizer has many aspects of the advantages,especially the application in high strength high performance concrete has been cognition,it will have a good prospect.One of the focuses of the engineering is if the property and the usage of the poly carboxylate super plasticizer can be correct understanded.Poly carboxylic acid water reducing agent has good water reducing and slump retention properties,commonly used in engineering, concrete strength grade and structure of the material index under the condition of normal, general domestic poly carboxylic acid water reducing agent can reach the corresponding
requirement for performance, although there still exists certain gaps compared with foreign products.The process of poly carboxylic water production is simple, and the complex process of admixture tends to be stable, production of high performance concrete is not very difficult anymore, Commercial concrete production is completely can be achieved.Therefore,admixture technique known as concrete technology third leap.
The dosage of admixture increases along with the fresh cement adsorption quantity of admixture increases.If just analyze the effect of admixture ,we can reach the performance requirements,but will inevitably increase the cost.we can ensure the soundness of cement and Save a lot of dosage of admixture,if the cement placed a certain amount of time.The fresher the cement, the less effective the water reducing agent on its plasticizing.
Since the application of admixtures units and the admixture production units are different in professional,there are some differences in understanding on the application of admixture, Only those who have specialized technical personnel to coordinate, to ensure the correct use of admixtures and concrete engineering quality.

Water pressure.
The maximum water pressure Pmax is twice of Pavg.
The distribution of water pressure is triangular distribution from the top of water (Pmax) to the stream line (zero).
The value of Water pressure were inputted in Table 3.
Schematic diagram of water wash bridge raft foundation Figure 3.

In addition, these materials offer professionals efficient and economically viable technical solutions.
These materials were developed to meet some specific requirements expressed by construction professionals, particularly those relating to acoustic and thermal comfort, and to durability as well.
The gains in mixing water are illustrated in Fig. 3-b.
It allows reducing the quantity of mixing water.
This certainly results in savings on mixing water and increases the workability as well.

"Cloud" is a huge resource pool, you demand to buy; cloud can be like running water, electricity, gas as billing,(7) is extremely cheap.
If this type of upgrade is managed in-house, resident IT professionals can more readily manage migration and harmonization of data, users, and processes.

The natural environment of the construction site is extremely severe, such as high temperature and strong blown sand, and the surfacial temperature can reach as high as about 70 centigrade in summer with serious water shortage.
International project is a transnational economical activity with multi-professional knowledge and many kinds of disciplines involved.
Cultivate high-level and comprehensive managing talents Concentrate on cultivating composite, extravert and creative managing talents with various professional knowledge combined, such as engineering technology, economic management and contract law, etc.

—It creates ethical responsible professionals.
—Sustainable development projects should be visible in the school environment (such as establishing ‘green offices’, energy saving, water saving, informal learning etc.).