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17:46
Цемент
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14 years ago
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17:19
Фосфор
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10,856 views
19:48
Углерод
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15,586 views
4:42
Стекло
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16,223 views
19:31
Сера
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10:06
Сера в природе
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4:34
Производство цемента
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18:08
Получение Азота, Амм...
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10,691 views
10:11
Окись углерода
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14 years ago
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16,744 views
18:58
Кремний
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4:14
Керамика
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14,537 views
19:11
Известь, её производ...
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14 years ago
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14,782 views
9:52
Двуокись углерода
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14 years ago
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16,179 views
17:41
Воздух
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10,434 views
18:48
Водород
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16:36
Вода
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14 years ago
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18:28
Аллотропные формы уг...
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14 years ago
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