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Tianchi is the world's largest liquid nitrogen dewar manufacturers and suppliers with many years' experience. We also major in the production of laboratory animal ultrasound machine, ice machine and
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Лазер - это устройство, излучающее свет через процесс оптического усиления на основе вынужденного излучения электромагнитного излучения. Лазеры, используемые в медицине, включают в себя, в принципе,
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