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- carbon oxygen ratio spectra logging 碳氧比能譜測井
- Water contains hydrogen and oxygen. 水含有氫和氧。
- Oxygen enters into many compound bodies. 氧是許多化合物的組成部分。
- Mars is too dry and poor in oxygen. 火星上面過(guò)于干燥，并且缺乏氧氣。
- Water is composed of hydrogen and oxygen. 水由氫和氧組成。
- Fish take in oxygen through their gills. 魚(yú)通過(guò)鰓攝取氧氣。
- The ratio of students to teachers is 35:1. 學(xué)生和老師的比率是三十五比一。
- The ratio of schoolboys to schoolgirls is 2 to 1. 男學(xué)生和女學(xué)生的比例是2比1。
- The oxygen react vigorously with the impurity in the iron. 氧氣與鐵中的雜質(zhì)發(fā)生劇烈的化學(xué)反應。
- Men outnumber women here in the ratio of three to one. 此地男子數量以三比一超過(guò)女子。
- The oxygen workshop caught fire and set off a chain of explosions. 氧氣車(chē)間著(zhù)了火，引起了一連串的爆炸。
- The first or last term of a ratio or a series. 首項，末項比率或數列中第一個(gè)或最后一個(gè)項
- Plants can absorb carbon dioxide and release oxygen. 植物可以吸收二氧化碳釋放氧氣。
- Water is composed of the elements hydrogen and oxygen. 水是由氫元素和氧元素組成的。
- There was a shortage of oxygen at the top of the mountain. 山頂上缺氧。
- An organism, such as a bacterium, requiring oxygen to live. 好氧菌需要氧氣生存的有機體，例如細菌
- After-tax profit margin is the ratio of net income to net sales. 稅後利潤率指凈收入與凈銷(xiāo)售之比。
- Oxygen masks are used in aircraft only in emergencies. 飛機上的氧氣面具只用於緊急情況。
- The ratio of men to women was two to one. 男女的比例是二比一。
- An oxygen mask will come down from overhead in case of an emergency. 若發(fā)生緊急情況，頭頂上會(huì )降下一只氧氣面罩。
