Down stream anaerobic biological filter where waste-water poured from top was used as anaerobic processing device in which bacteria colloid was found on padding in biological membrane form.
厌氧处理装置使用下流式厌氧生物滤池，其中菌胶团以生物膜的形式附着在填料上，进水从反应器顶部注入。
Guangdong province is one of the plastics product - processing centers in China. Consumer quantity of ethylene and its down stream products is over 30% it our country.
广东省是全国塑料产品消费中心之一，乙烯及下游产品消费量占全国的30%以上。
Guangdong province is one of the plastics product - processing centers in China. Consumer quantity of ethylene and its down stream products is over 30% it our country.
广东省是全国塑料产品消费中心之一，乙烯及下游产品消费量占全国的30%以上。
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