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The world intellectual property organization in 1977 edition of the licensing handbook "for developing countries to use, to the definition of technology:" technology is knowledge for the manufacture of a product system, the adoption of a process or provide a service, regardless of whether this knowledge is reflected in an invention, a shape design, a utility model, or a kind of new plant varieties, or reflected in technical information or skills, or reflected in the expert for the design, installation, run a factory or maintenance or for managing a business or its activities and provide services or assistance, etc." This is by far the most comprehensive and complete definition of technology in the world. In fact, the intellectual property organization defines all the scientific knowledge that can bring economic benefits to the world as technology
The rapid development of air filters is closely related to the development of military industry and electronic industry. In the first world war, the use of various chemical agents, asbestos fibre filter paper as the smoke filter layer of military gas masks came into being. The glass fiber filter medium is used in air filtration to obtain a patent in the United States in October 1940. In the 1950s, the United States studied the production process of glass fiber filter paper, and the air filter was improved and developed. In the 1960s, HEPA filters came out; In the 1970s, the filter paper of fine glass fiber was used as the HEPA filter of filter medium, and the filtration efficiency of particle size of 013 micron particle diameter was 99.9998%. Since the eighty s, with the emergence of new test method, use evaluation to improve and to improve the filtering performance requirements, found the HEPA filter there is a serious problem, and he had a higher ULPA filter performance. Countries are still working on it and expect more advanced air filters soon
Epoxy adhesives could possibly be good. This is just about the most powerful glues. Such is sold with regards to the curing time. Some are very fast (dry by 50 % to 3 minutes) and slow curing (over one hour). We must analyze our project to find out which to pick. Also you always need both, since for small rc car areas it is rather tedious to need to wait a long time, while for large surfaces, it really is impossible to glue in full before it hardens.
The biggest advantage of elastic filter is that it is free of maintenance, which can be automatically cleaned and avoided. Product features: free maintenance, can automatically clean Cleaning time is short (3 seconds) the equal and can swing can replace spring open gap mesh type, drum, bag filter, etc To reduce the comprehensive cost scope of application: automobile industry (processing machinery, cleaning machinery, etc.) machine tool industry (processing coolant, burr processor, etc.) the food industry (drainage treatment, Fried residue recycling) swimming pool, pool, spa and other places of large circulating water filter High pressure water cutting, stripping device cooling tower circulating water filter (sandstone, wood chip, foreign body removal)
My investigation involved posing as a person, hidden cameras, targeted surveillance, plus some forensic computer analysis. At the conclusion of the investigation I was capable of establish that one shop manager was routinely pocketing cash payments from customers and likewise to using the shop before bed after business hours to repair friend?s vehicles, one manager was building a evening under-the-table car repair business while using company?s facilities and equipment.
“We are a trade specialist so all retail enquiries and enquiries from smaller independent installers are handled by our customers, which means they are sharing directly in the success of our campaign.”
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