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In the field of archaeology, most of the evidence are metal, such as musket bullet, cartridge, bullets, artillery and shells, shrapnel and/or of the sword, what are the specific evidence depends on the battle took period of history. Thus, the most important tool for field archaeologists is simple metal detectors
The automobile is really a complex machine comprised of different components each which has a specific role. Fuel is processed within the engine where it's changed to energy that moves the automobile. Exhaust through the combustion process is filtered to render emissions less harmful to the surroundings. The transmission system feeds more chance to the engine for the auto to boost its acceleration.
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.
To own one of these brilliant vintages defines who you are, how we hang around and how you wish to be known, and Cubans go to incredible lengths to have their classic cars running. 1950's bumpers and tailpipes are recreated and myriad other regions are adapted. Steering wheels carved from wood, hub cabs produced from aluminum cans and plastic sheets for windows are normal. While such shortcuts can be frowned upon in the United States, classic car lovers admire the Cubans' ingenuity in addition to their capacity to maintain the cars running.
The automatic filter consists of shell, multiple filter element, anti-flush mechanism, electric control box, reducer, electric valve and differential pressure controller. Casing of diaphragm plate inside cavity can be divided into upper and lower two cavity, the cavity is equipped with multiple filter core, so that make full use of the filter space, significantly reduce the filter size, are installed in the inferior vena backwash suction cups.
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