average stream flowの例文

例文

1. Over the last 30 to 50 years, average stream flow has decreased in many parts of Canada with significant reductions in the south.
2. As juveniles, they prefer shallow water ( under 0.5 m deep ) with coarse substratum and faster than average stream flow ( such as that found in riffle s ).
3. To supply such a power plant with water, a surface water system only needs enough storage capacity to fill in when average stream flow is below the power plant's need.