Способы очистки и обеззараживания воды в полевых условиях
Основной способ очистки и обеззараживания воды без кипячения в полевых условиях.
1 month ago 01:30:13 0
3 months ago 00:01:01 1
4 months ago 00:06:57 7
4 months ago 00:08:09 0
5 months ago 00:09:24 0
7 months ago 00:10:34 6
7 months ago 00:11:28 0
7 months ago 00:12:36 0
7 months ago 00:10:35 0
7 months ago 00:00:29 0
7 months ago 00:01:00 0
7 months ago 00:06:14 1
7 months ago 00:24:32 0
7 months ago 00:44:32 0
7 months ago 00:09:54 0
7 months ago 01:01:22 0
7 months ago 00:08:49 0
7 months ago 00:31:51 0
7 months ago 01:40:24 0
7 months ago 00:38:32 0
7 months ago 00:50:21 0
7 months ago 00:04:29 0
7 months ago 00:04:51 14
7 months ago 00:01:18 1
