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Окончателното ръководство към механизацията

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H2o wheels day to the Roman period and had been used to grind grain and carry irrigation water. H2o-run bellows were being in use on blast furnaces in China in 31 Advert. Она также уменьшает издержки на энергию и материалы благодаря более эффективному использованию ресурсов. With the early twentieth https://annet371wqk8.eqnextwiki.com/user

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