Presents the selection and calculation method and quantity determination of the circulating water pumps, and the operation characteristics of the pumps in parallel.
介绍了循环水泵的选择计算方法，循环水泵台数的确定原则，以及水泵并联运行的特点。
The treatment technique of Matigou Mine well water, selection of Coaqulant agent, determination of quantity, selection of equipment and analysis of expense are introduced.
介绍了马蹄沟矿矿井水的处理工艺、混凝剂的选择、投加量的确定、设备选型和费用分析等问题。
The budgetary estimate fixed quantity is the determination certain measuring unit expands the branch sub-item project the man-power, the material and the machinery consumption quantity standard.
概算定额是确定一定计量单位扩大分部分项工程的人工、材料和机械消耗数量的标准。
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