河量变动 fluctuation of river discharge
跨河水准测量 river-crossing leveling ; Crossing Leveling ; over river leveling ; cross-river leveling
河道整治测量 [水利] river improvement survey
河流流量 Stream flow ; stream discharge
河海测量 hydrographic survey ; nautical hydrography
河道流量 stream flow ; River Discharge
河道容量 channel capacity
河水量 rate of stream flow
全面分析各河流和各地市的入河废污水量和污染物入河量；
The waste water and pollutant quantity inlets into river were analyzed generally.
它们已经成了伊利诺斯河的主人，如今占那里90%的生物量。
They have takenover and now represent 90 percent of the biomass in the Illinois River.
研究人员在马代拉河捕获的鱼中发现高水平的含汞量。
Researchers have found high levels of mercury in fish caught in Madre DE Dios.
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