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The world's top engine: The Russian NK32 engine
The most reflective of a country's industrial standards in the field of aviation engine manufacturing, the most sophisticated aviation engine, is the military aviation engine, large thrust military aviation engine, representing the highest achievements of mankind in the field of industry, like we see the strategic bomber, it is necessary to use this large thrust aviation engine, Russia has such a world's top aviation engine - the Russian NK32 engine, a screw is not sold, the United States so far can not surpass. -
How many languages are there in the world?
Most of us speak and communicate, of which language is an indispensable thing, most countries have their own language, and there are many countries in the world, so there are many languages, so how many languages are there in the world? -
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What are the most mysterious races in the world?
Race refers to the differences in the characteristics of human biological characteristics, which is small in terms of genetic genes. At present, people in the world are classified according to the skin color, which are mainly divided into four categories: yellow, white, black, and brown races. Among the many races in the world, do you know what are the most mysterious races in the world?
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