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Water-based polyurethane forms continuous and dense film after fully drying.
Besides, water and solvent resistance of normal PU film is not ideal.
High speed mixer, Qingdao HaiTongDa Professional Instrument Plant; Thermostatical drying cabinet of the electric heat, TianJin ZhongHuan Experiment electric stove CO.
Solid density and water resistance were separately measured.
The influences of PU coating of soft and hard segment to water resistance of blocks.

Post qualification training for construction industry professionals’ necessary lesson.
Seeking the porosity of the material, the quality of water absorption, the volume of water absorption, the opening porosity, closed porosity.
Research on building materials and engineering system based on embedded system Material with water-related nature of the hydrophilic and hydrophobic-hydrophilic: water is easy to expand in the material surface, this water affinity referred to as hydrophilic.
Hydrophobic: contact of the material with water, with a water affinity [4].
The definition and characteristics of the type of material surface with water affinity strong material hydrophilic material infiltration corners θ ≤ 90 ° surface with the infiltration of the water repellent material of the water affinity of the material to the corner of θ> 90 °.

Former brilliant and bumpy journey of the Chinese contemporary industrial design Since the 70s and 80s of the last century(China's reform and opening up), the closed planned economy model has been broken, with the modern culture of market economy pattern, economic concepts inrush the life ,the work even the mind of each ordinary Chinese people， like a mighty flood of water gate opening .
From the late 70s to early 80s, the words industrial design began to appear in the mouth of the Professional frequently, and gradually penetrate into the lives of every Chinese.
And most industrial manufacturers do not have their own professional designers, rely on professional design services of outsourcing company when they need design.
Meanwhile, the low costs of outsourcing make the professional design company pay more energy to meet customers high requirements, the connecting work among designing, producting and promoting.
There are more than ten industrial designers in charge of designing in Goodbaby Group's design department, the equivalent of a professional company.

Therefore, a county or a professional who WRS higher, the corresponding D smaller.
To cadres of water sector, their tension of water resources is deep.
To improve the level of awareness of all the people about water shortages and to rational planning and management of water resources are the key to solve water shortages.
Moreover, to peasants and herdsmen and cadres of water sector, their awareness on water stress are close to
(4) To improve the level of awareness of all the people about water shortages and to rational planning and management of water resources are the key to solve water shortages.

Building intelligent systems design and analysis Building intelligent systems is complicated, mainly including communication, wiring, monitoring of construction equipment, computer network, entrance guard, TV, multimedia conference room, and so on, it also involves weakness system professional.
Second, electricity, water, and other professional design drawings.
By means of bid invitation and bidding documents and files, answering questions to master the content and requirements; According to the water, electricity and other professional design drawings list list of equipment needed for each subsystem, the content of the listing of the type, location and distribution box contains the location and number; According to the controlled device adjust the tender point table listing, adjust according to the floor, equipment location perfect cursor point table, according to the principle of plate to plate and check the equipment requirements; Based on the tender point table to adjust and improve the design and intelligent system of the plane design drawings, design drawings must be marked by each dish box device location, clear each line line, specification and monitoring content, clear line direction; Drawing a design system, according to floor clear each connection structure of DDC box, clear the disk device, monitoring content and the number of plate

In addition, the education on water environment and other issues has spread nationwide, more than 30,000 people took part in this education.
The main task of the committee is to coordinate more than 40 organizations and professional groups for environmental education to implement on environmental education.
It required to set up environmental professional and curriculum, train technical personnel."
Since then, Tsinghua University, Beijing University and other colleges and universities have established the environmental professional.
After the 1992 United Nations Conference on Environment, the " Ten Countermeasures on Environment and Development in China " was approved by the State Council [9].Article VIII of them pointed out that at all levels of education bureaus and relevant departments should attach importance to environmental education, increase public awareness and consciousness in environmental protection in primary and secondary schools and kindergartens; Efforts to run professional courses of Environmental protection in colleges.

Currently, the Internet provides information to the audience of sports sites in the following major categories: Professional sports sites ( such as domestic famous Sharkwave site ), government websites ( such as the Olympic Games official website ), integrated media sites (LONDON, Sohu, Sina ), traditional media has its own website ( such as People's Daily website, Xinhuanet ) and some do not amount to anything personal website.
From the quantity, quality, timeliness, authority and audience attention in terms of sports information dissemination, and other professional categories Sharkwave sports sites, Sina and other integrated media sites and traditional media such as Xinhua website is the site leaders which provide sports information, and Sharkwave, Sina is more prominent [1].
Professional sports website, but its depth and breadth of information attracted a large number of users.
At the same time, some users who will act as the mass sports news information, because most people have not received formal training professional news media, little is known about the propagation of the network, and thus make some online editing manuscripts very difficult, nor throw with no.
So many users have complained that the Internet information more water, real to the enemy .

Professionals should consider the clinical situation, the intrinsic resistance of ceramics, optical characteristics and the practicality of the laboratory stage, to choose what kind of material they should indicate.
Among the several options available in the dental market, the lithium disilicate -based ceramic, and vitroceramics, have been gaining wide acceptance by professionals, primarily associate resistance, esthetic result and ease in the laboratory stage.
Table 2 - Experimental groups Groups Treatment Control (n=5) No treatment G 1 (n=5) Application of 10% hydrofluoric acid for 20 seconds G 2 (n=5) Application of 10% hydrofluoric acid for 40 seconds G 3 (n=5) Application of 5% hydrofluoric acid for 20 seconds G 4 (n=5) Application of 5% hydrofluoric acid for 40 seconds The samples of Groups 1 and 2, after conditioning at 10% hydrofluoric acid at a specified time, the samples were washed with running water for 30 seconds and taken to a ultrasonic tank for 10 minutes for cleaning.

Introduction With the continuous development of electronic information technology, more and more new radar has been widely used in the modernization of national defense.At the same time, we upgrad the radar technique and system, improve the requirement on radar professional operation and maintenance personnel.
Therefore, we need to cultivate radar talent of professional knowledge, strong practical ability, who can be adapt to the new military revolution.
Using WinXPE embedded operating system, through WinXPE development tools such as the target designer and analyzer, the component designer, component database manager, WinXPE development tools, complete the customization development of WinXPE system independently.The system after development has a small core, occupying less system resources, high starting speed, enhanced write protection which WinXP systems do not have, and it also has all functions of XP Professional and the compatibility of the application software.
B.Using WinXPE embedded operating system, which has a small core, occupying less system resources, high starting speed, enhanced write protection which WinXP systems do not have, and it also has all functions of XP Professional and the compatibility of the application software.
[2] In Lu, Liu water, Wang Sichen.

Modal Test of Shanghai Metro Line 1 Based on Environmental Stochastic Excitation Chunxia Chen1, a, Yuming Zhang2,b Yonghua Yang1,c 1 College of Civil Engineering, Shanghai Normal University, Shanghai, 201418, China 2 College of Water Conservancy and Civil Engineering, Shandong Agriculture University, Tai’an, 271000, China accxzym@163.com, bzym@sdau.edu.cn, cyonghua1976@163.com Keywords: soft soil-tunnel system, modal test, environmental stochastic excitation, natural frequencies Abstract.
The system is based on virtual instrument pattern, and consists of INV306 acquisition card and DASP2003 professional edition.
With DASP2003 professional data collection and process platform software, data are recorded and analyzed, and dynamic characteristics of the tunnel are obtained. 3.
time time Figure 2 Time-history curves (horizontal direction) time Figure 3 Time-history curves (vertical direction) 4.2 Results analysis of the test in a horizontal direction With DASP2003 professional edition of large capacity data acquisition and signal processing system, the acquired data of horizontal pulse test were selected and filtered.
Figure 4 Oscillograph of frequency domain with half-power bandwidth analysis Figure 5 oscillograph of frequency domain with FFT analysis Table 1．Natural frequency and corresponding damping at each point (horizontal test) Point number Half-power bandwidth FFT f（） D（%） f （） D（%） f1 0.48833 42.3159 0.48833 42.081 2.929981 11.4365 2.929981 11.3844 1 0.48833 35.2339 0.48833 34.9273 2.929981 11.5176 2.929981 11.4637 2 0.48833 27.8536 2.832315 11.1511 2.832315 11.2012 0.48833 27.6152 3 0.48833 34.9319 0.48833 34.4124 / / 2.734648 / 4 0.48833 33.9381 0.48833 32.6774 / / 2.832315 / 5 / / 2.832315 / / / 0.48833 / 6 / / 2.832315 / / / 0.48833 / 7 2.832315 8.7985 2.832315 8.7653 8 2.832315 5.6852 2.832315 5.6551 9 2.832315 7.2097 2.832315 7.1509 10 2.832315 7.5906 2.832315 7.5476 4.3 Results analysis of the test in vertical direction With DASP2003 professional edition of large capacity data acquisition and signal processing system, the acquired data of vertical pulse test were selected