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17:46
Цемент
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11 years ago
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11,922 views
17:19
Фосфор
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11 years ago
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8,796 views
19:48
Углерод
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11 years ago
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12,087 views
4:42
Стекло
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11 years ago
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12,620 views
19:31
Сера
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10:06
Сера в природе
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11 years ago
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8,333 views
4:34
Производство цемента
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11 years ago
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11,735 views
18:08
Получение Азота, Амм...
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11 years ago
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8,655 views
10:11
Окись углерода
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11 years ago
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13,301 views
18:58
Кремний
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12,227 views
4:14
Керамика
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11 years ago
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11,013 views
19:11
Известь, её производ...
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11 years ago
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11,574 views
9:52
Двуокись углерода
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11 years ago
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12,830 views
17:41
Воздух
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11 years ago
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8,323 views
18:48
Водород
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8,778 views
16:36
Вода
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11 years ago
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18:28
Аллотропные формы уг...
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11 years ago
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7,972 views
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