耗氧速率 oxygen consumption rate 指生物和微生物进行呼吸作用所消耗氧气的速度。水体中有机物成分非常复杂，耗氧有机物浓度常用单位体积水中耗氧物质生化分解过程中所消耗的氧量表示，生物和微生物进行呼吸作用所消耗氧气的速度。
煤氧复合热效应与耗氧速率和表面反应热有关。
The combined thermal effect of coal and oxygen correlates with the rate of oxygen consumption and surface reactive heat.
活性污泥耗氧速率的测定具有快速、简单、灵敏的优点。
The measurement of oxygen uptake rate is quick, simple and sensitive, so in many overseas wastewater treatment plants, its application has been spreaded.
由于煤的粒度不同，暴露在空气中的表面活性结构数量不同，其耗氧速率也不相同。
Both the quantity of surface activated structures exposed in air and their oxygen consumption rate are different due to the different particle size of coal.
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