The operation design must meet with its operation conditions of the operation level, design inflow discharge, sediment concentration, sediment settlement design standard and the operation time.
运行设计应满足沉沙池运行水位、设计入池流量、含沙量、泥沙沉降设计标准和运用时间等运用条件。
Modifying preparation of standard curve in use of measurement, the method optimizes measuring precision, time, cost, and operation steps.
由于改良了测定中标准曲线的制备，使本发明在测定精度、时间、成本与操作步骤上得以进一步的优化；
By studying some boring machining families, standard time datum for unit operation was set up. Some methods of shortening operation changing time were also presented.
通过对钻孔加工族的时间研究，初步建立不同工步单件加工时间的标准资料，并探讨节省作业转换时间的方法。
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