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http://svetovik.info/articles/video-uroki/video-lightconverse/lightconverse-%D1%83%D1%80%D0%BE%D0%BA-1-%D0%B4%D0%B2%D0%B8%D0%B6%D0%B5%D0%BD%D0%B8%D0%B5-%D1%84%D0%B5%D1%80%D0%BC%D1%8B-%D1%81-%D0%BF%D1%80%D0%B8%D0%B1%D0%BE%D1%80%D0%B0%D0%BC%D0%B8-r24/
Lightconverse. Урок 1. Движение фермы с приборами