oxygen demand

基本解释

Sulfur dioxide emissions and chemical oxygen demand kept falling, down 5.95% and 4.42% respectively, and this trend became more firmly set.
二氧化硫、化学需氧量排放量减少的势头得到巩固，全年分别下降5．95％和4．42％。
Scientists are also eying the Steller sea lion, which redirects blood flow away from non-critical organs during deep sea dives and reduces oxygen demand.
科学家甚至还观察过深海的虎头海狮，当其迁入深海之后，其血液流动会促使一些非关键的身体器官关闭，并且减少氧气的供给。
According to the study agriculture is responsible for 43.7% of the nation's chemical oxygen demand (the main measure of organic compounds in water) 67% of phosphorus and 57% of nitrogen discharges
研究表明，水质43.7%的化学需氧量（测量水质有机化合物的主要指标）、67%的含磷量和57%含氮量应归咎于农业。

China also missed its target for chemical oxygen demand, a measure of water pollution.
FORBES: Ending China Pollution An Uphill Battle
Hypothermia is a rotten way to slow the brain's demand for oxygen.
FORBES: Brave Heart

需氧量
As for water pollution,chemical oxygen demand（COD）is an important measure of organic pollution in water.
在水污染监测中,COD,即化学需氧量,是衡量水体有机污染的重要指标。
医药科学
需氧量
ABM: The oxygen demand of myocardium increases acutely during excessive exercise and labor. Consequently blood flow in coronary arteries is relatively defcient, which results in relative ischemia/reperfusion injury.
目的:过度运动或超负荷体力劳动时心肌需氧量增加,而使冠状动脉相对供血不足,导致心脏发生相对缺血/再灌注损伤,其病理生理过程与缺血/再灌注损伤类似。
心理学
氧气需要量