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However, science and technology are two different social cultures, and the differences between them are obvious. The basic task of science is to know the world and find it, thus increasing the intellectual wealth of mankind. The basic task of technology is to discover the world and invent it to create the material wealth of mankind and enrich the spiritual and cultural life of human society. Science answers questions about "what" and "why"; The technology answers the question "what to do" and "how to do". Therefore, the results of science and technology are different in form. Scientific achievements are generally expressed as concepts, laws, papers and other forms. The technical results are usually in the form of process flow, design drawing, operation method and so on. Scientific products are generally not commercial and technological achievements can be commoditized. Modern technology has a strong utilitarian and commercial color.
You can ride around traffic jams and present filling stations the cold shoulder when you ride an electric power assist bicycle to be effective after which pedal home for exercise. To charge a power assist bicycle cost about ten cents. That charge is going to take you as much as 20 miles. That's like paying ten cents per gallon for gas. If we ever have gas shortages, such as the seventies throughout the Arab oil embargo, your power assist bicycle will give you the best way to get around.
It is also known as welding long rail line, which is a kind of line that welded normal rails without rail seam. The welding rail is not less than 200 meters long, and the actual application is usually 800~1000 meters or more. The long track is laid in the specified temperature range and fixed on the pillow. The long rail ends with a rail joint, while the middle part cannot scale up and down with the temperature. Therefore, there will be a great temperature pressure in the middle of the rail during the summer, which will produce a great temperature tension in winter. The greatest pressure on the rail and tension according to the years of rail laying and the highest temperature and minimum temperature calculation, rail tracks the maximum pressure should not cause to drum up by maximum tension should not cause rail fracture
In 1981, car manufacturers started assigning a distinctive, 17-character code to every vehicle that is built, that is utilized for assorted purposes, but mostly for verifying the legitimacy of vehicles. Governments and police officers agencies apply it to recognize stolen vehicles, and motorists require it whenever they take their cars to some mechanic, plus its useful when selecting pre-owned car, to help you manage a vehicle history report. The insurance industry often uses vehicle identification numbers, as well. VINs are usually engraved on aluminum plates, cast or stamped, being a bar code, or even in label form, and they is available on a car's steering column, doorjamb, driver's door, passenger side door, dashboard, too as in a vehicle's maintenance book and title.
New Car Buying Tips--



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