oxygen demand

基本解釋

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、化學(xué)需氧量排放量減少的勢(shì)頭得到鞏固，全年分別下降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.
科學(xué)家甚至還觀察過(guò)深海的虎頭海獅，當(dāng)其遷入深海之后，其血液流動(dòng)會(huì)促使一些非關(guān)鍵的身體器官關(guān)閉，并且減少氧氣的供給。
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，水質(zhì)43.7%的化學(xué)需氧量（測(cè)量水質(zhì)有機(jī)化合物的主要指標(biāo)）、67%的含磷量和57%含氮量應(yīng)歸咎于農(nóng)業(yè)。

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.
在水污染監(jiān)測(cè)中,COD,即化學(xué)需氧量,是衡量水體有機(jī)污染的重要指標(biāo)。
醫(yī)藥科學(xué)
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:過(guò)度運(yùn)動(dòng)或超負(fù)荷體力勞動(dòng)時(shí)心肌需氧量增加,而使冠狀動(dòng)脈相對(duì)供血不足,導(dǎo)致心臟發(fā)生相對(duì)缺血/再灌注損傷,其病理生理過(guò)程與缺血/再灌注損傷類(lèi)似。
心理學(xué)
氧氣需要量