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单词 含氧量
例句 DEFINITIVE EXAMPLES 权威例句〔peracid〕An inorganic acid, such as perchloric acid, containing the largest proportion of oxygen in a series of related acids.一种无机酸,如各种相关酸中含氧量最大的酸美国传统〔suboxide〕An oxide containing a relatively small amount of oxygen.低价氧化物:含氧量相对较少的氧化物美国传统〔volume〕A given volume of air contains only about one-third as much oxygen as it would at sea level.一定容积空气的含氧量只有海平面处空气含氧量的三分之一左右。外研社新世纪〔volume〕It is 2,300 metres above sea level, so a given volume of air contains only about one-third as much oxygen as it would at sea level.这是在海拔2,300米的高空,因此一定体积空气的含氧量只有海平面处的约1/3。柯林斯高阶
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