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chemical method discharge measurement
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chemical method discharge measurement
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chemical method discharge measurement
化学法测流
在测验河段的上游断面注入一定浓度的示踪剂,经水流充分混合后,在下游取样断面测定稀释后示踪剂浓度或稀释比率的流量测验。
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reference element
reference ellipsoid
reference-ellipsoid-centric coordinate system
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reference frame of center of masses
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Reference Guide for Books
reference input
reference interaction site model
reference leak
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reference material (RM)
Reference Materials for Printing Movable Type Research
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