Pump is the drainage and back into the groove of reasonable design, is a gear in the work under the minimum torque force, so the bearing load is small, wear small, pump with high efficiency.
输送皂角泵内有设计合理的泄油和回油槽，是齿轮在工作中承受的扭矩力最小，因此轴承负荷小，磨损小，泵效率高。
Monitoring and assessing the processes for waste water treatment employed in different factories, we screen out reasonable ones, achieving the Drainage Standard with lowered operational expense.
并针对不同企业所排放的污水采用的水处理工艺进行监测评价，筛选出了工艺合理，运行费用低且可达标排放的废水治理工艺。
It will form the basis of cost analysis to institute reasonable drainage scheme in tunnel construction, which also plays an important role in the engineering cost control of construction stage.
制订合理的隧道施工排水方案，是进行费用分析的基础，并在施工阶段的工程造价管理中有着重要的作用。
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