A new test method for evaluating the resistance of cementitious products and materials to biogenic acid attack,labelled ......

[目的]了解城市下水道使用鼠毒饵灭鼠的效果.[方法]拖食法.[结果]用荤性食品和油条做灭鼠诱饵,适口性、效果明显好于蜡块商品毒饵,......

Separate sanitary sewer systems are designed to convey sewage waste from municipal areas to a central treatment facility......

Sewer blockages are on the increase whilst water closet (WC) flush volumes are on the decrease. Furthermore, Water UK re......