Certification Corner

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Opflow | 1983年 / 9卷 / 08期
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D O I：
10.1002/j.1551-8701.1983.tb00118.x
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摘要：
This month's Certification Corner presents problems for determining charges per acre foot, identifying drawdown in a well, determining why pump motors draw more power when starting than during normal operating conditions, and determining when to use diatoms. © 1983 American Water Works Association.
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页码：3 / 8
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