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Съображения, които трябва да знаете за механизацията

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H2o wheels date towards the Roman period and were accustomed to grind grain and lift irrigation water. Water-driven bellows were being in use on blast furnaces in China in 31 AD. Механизация – это процесс перехода от работы в основном или исключительно вручную или с использованием тяги животных к https://robertm937ohz4.iamthewiki.com/user

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