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混凝土生物砂过滤

322 bytes added, 03:37, 21 October 2017
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__NOTOC__ <small{{Language-title />box|english_link= Concrete Biosand Filter | french_link= Coming soon | spanish_link= Coming soon | hindi_link= Coming soon | malayalam_link= Coming soon | tamil_link= Coming soon | swahili_link=coming soon | korean_link= Coming soon | chinese_link=混凝土生物砂过滤 | indonesian_link= Coming soon | japanese_link= Coming soon }}
[[Image:Biosandfilter.png‎|right|80px]]
[[Image:concrete biosand filter.jpg|thumb|right|200px| 喀麦隆昆博市的生物砂过滤器. 图片: [http://www.lwdgc-africa.org/15.html LWDG 喀麦隆.]]]
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