A complex but non-significant association was found between water supply and pupal counts, and lack of waste disposal services was associated with higher vector abundance in only one site.
我们发现，水的供应和蛹的数量之间存在复杂但非重大的关联，没有水处理设施只在一个地点与较高的病媒丰度存在关联。
Meanwhile, utility workers are extending an emergency power cable to the 40-year-old complex. That would allow a steady supply of electricity to run water pumps.
同时，公用事业工人们也在往这个修建了40年的建筑群铺设一条紧急电缆，为水泵的运转提供不间断的供电。
Under the urgent security requirements, the water utilities have to evaluate the water supply system newly for complex and austere situations.
面对不断升级的安全需求，供水企业不得不重新审视评价自己的系统，以应对复杂严峻的形势。
Water networks is a kind of large-scale and complex system, its serviceability is crucial to urban optimal water supply.
对结构复杂、规模庞大的城市给水系统来说，保证其可靠性对于提高给水服务水平至关重要。
Water networks is a kind of large-scale and complex system, its serviceability is crucial to urban optimal water supply.
对结构复杂、规模庞大的城市给水系统来说，保证其可靠性对于提高给水服务水平至关重要。
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