您要查找的是不是：
- primary sedimentation basin 一次沉淀池
- The trickling filter and activated sludge efficiencies cited required primary sedimentation and effluent circulation. 列举的生物滤池与活性淤泥法的效率就需要初次沉淀和回流。
- All commercial reservoirs were found in sediment basins up to now. 到目前为止,商业性油气藏均发现于沉积盆地中。
- horizontal-flow sedimentation basin 平流沉淀池
- continuous flushing sedimentation basin 连续冲洗式沉沙池
- sloping plate sedimentation basin 斜板沉淀池
- Permanent drainage channels shall incorporate sediment basins or traps and baffles to enhance deposition rates. 永久性的排污渠道须设有集泥池截泥器及栅极，可提高淤泥沉积率。
- Design Discussion on A New-Type Scouring Sedimentation Basin 一种新型冲洗式沉沙池的设计探讨
- Aeration and sedimentation basin Chemical Engineering 汉语译成英语曝氣沉澱池
- Scattered in these offshore waters are more than 30 sedimentation basins,with a total area of nearly 700,000 sq km. It is estimated that there are about 25 billion tons of oil resources and 8.4 trillion cu m of natural gas in these basins. 中国海域有30多个沉积盆地，面积近70万平方公里，石油资源量约250亿吨，天然气资源量约8.;4万亿立方米。
- Scattered in these offshore waters are more than 30 sedimentation basins, with a total area of nearly 700,000 sq km. It is estimated that there are about 25 billion tons of oil resources and 8.4 trillion cu m of natural gas in these basins. 中国海域有30多个沉积盆地，面积近70万平方公里，石油资源量约250亿吨，天然气资源量约8.;4万亿立方米。
- Settled solids from coagulating may be stored in plain sedimentation basins for periods of up to several months, then removed by taking the tanks out of service and emptying the contents. 被安定的固体从凝固在简单的沉积作用水池也许被存放在由几个月决定的期内， 通过采取坦克丧失功能和倒空内容然后去除。
- Extraneous water in sediment basin may come from upper stratum or the earth's surface, the gravitation is its primary migration dynamics; 沉积盆地中的外来水可以来源于浅部或地表，重力是其运移的主要动力。
- The disease is still in its primary stage. 这疾病仍然在初发阶段。
- Slip-form construction for the reconstruction of sedimentation basin 沉沙池改造坡面混凝土现浇滑模施工技术
- The little boy left primary school at eleven. 这个小男孩十一岁时小学毕业。
- Sure. We are friends since primary school. 当然，我们从小学就是朋友了。
- I started primary school when I was 5 years old. 我五岁时开始读小学。
- A primary cause of Tom's failure is his laziness. 懒惰是汤姆失败的主要原因之一。
- Primary school teachers use a lot of visual aids. 小学教师使用大量的视觉教具。
