上次我们讨论了光合作用，即植物利用光将二氧化碳和水转化为食物的过程。
Last time we talked about photosynthesis, the process by which plants use light to convert carbon dioxide and water into food.
二氧化碳和水混合的结果是形成碳酸。
Mix carbon dioxide with water and the result is carbonic acid.
光合作用把二氧化碳和水转化成植物生长所需物质。
Photosynthesis creates plant matter out of carbon dioxide and water.
微生物把粪便分解成肥料、二氧化碳和水。
Microbes can decompose dung and urine into fertilizer and produce carbon dioxide and water.
当碳氢化合物燃烧时，该键被破坏以生成二氧化碳和水。
When a hydrocarbon is burned, these bonds break apart in order to form carbon dioxide and water.
最后，大气甲烷与羟基离子发生反应，生成二氧化碳和水。
Eventually, atmospheric methane reacts with hydroxil ions to form CO2 and water.
这两种产物都是燃料，燃烧之后产物分别是二氧化碳和水。
Both of these are fuels (they burn in air to form carbon dioxide and water, respectively).
化合物m是一种气态的烃，燃烧时生成二氧化碳和水。
Compound m is a gaseous hydrocarbon and on combustion yields carbon dioxide and water.
对于第二个反应，氧与氧化物反应形成二氧化碳和水。
In the latter one, oxygen reacts with the compounds to form carbon dioxide and water.
通过控制照明、温度、湿度、二氧化碳和水，可以保证全年产量的稳定。
Stable production is guaranteed throughout the year by controlling lighting, temperature, humidity, carbon dioxide and water.
TMA暴露在空气或水中后的生成物是氧化铝、二氧化碳和水。
The products of the reaction, when TMA is exposed to air or water, are aluminum oxide, carbon dioxide and water.
由于脂肪的燃烧后生成的是二氧化碳和水，因此不会有乳酸的形成。
Because fat is burned to carbon dioxide and water, not lactic acid is formed.
数十亿年来自然界通过光合作用利用阳光将二氧化碳和水转化为葡萄糖。
Nature, of course, has been using sunlight to convert CO2 and water into glucose for billions of years through photosynthesis.
大约25亿年前，生物界出现了光合作用——把光照、二氧化碳和水转化成糖的能力。
About 2.5 billion years ago, the newest fad in organisms was photosynthesis — the ability to to turn sunlight, carbon dioxide (CO2) and water into sugar.
但是对于这个新的纳米管装置，需要不断向仪器内通入二氧化碳和水来维持反应的继续。
But with the new nanotube devices, the Chambers would have to be replenished with carbon dioxide and water from time to time to keep the reaction going.
因此反应的中间产物为邻苯二甲酸，终产物为邻苯二甲酸酐、二氧化碳和水。
Therefore, the intermediate product is phthalic acid and final products are phthalic anhydride, carbon dioxide and water.
此外，产物比原料更活泼，很容易发生过度氧化，生成二氧化碳和水等副产物。
Moreover, due to the products (oxygen-containing compounds) is active than the raw material (alkane), the deep oxidation to carbon dioxide and water easily occurred.
肺是我们身体中一个重要的器官，它将氧气输入到血液里，同时排除二氧化碳和水。
The lung is one of most important parts of our bodies. It furnish our blood with oxygen and get rid of carbon dioxide and water.
在这个过程中，光能和叶绿素(绿色的色素)中的二氧化碳和水被转化成葡萄糖(一种糖类)。
In this process, carbon dioxide and water in the presence of chlorophyll (the green pigment) and light energy are changed into glucose (a sugar).
拿“光合作用”理论来说，这个理论认为所有植物成长、进而乃至动物，都依赖于太阳对二氧化碳和水的作用。
Take the theory of photosynthesis, which holds that the growth of all vegetation, and consequently of animals, depends on the action of the sun on carbon dioxide and water.
那种基因决定了一种特殊的酶，这种酶能将二氧化碳和水（不要忘了水）分解成重碳酸盐和质子团。
That gene encodes an enzyme that breaks down CO2—and water…don’t forget the water—into bicarbonate and protons.
PLA具有优良的生物相容性、生物可降解性，最终降解产物是二氧化碳和水，不会对环境造成污染。
PLA has excellent biocompatibility, biodegradability, and the ultimate degradated products are carbon dioxide and water, which have no pollution to the environment.
当你在烧氢类燃料(如石油)时，燃料中的氢原子和碳原子与空气中的氧结合反应，生成了二氧化碳和水。
When you burn a hydrocarbon fuel such as oil, its hydrogen and carbon atoms combine with oxygen from the atmosphere to create water and carbon dioxide.
拿拿“光合作用”理论来说，这个理论认为所有植物成长、进而乃至动物，都依赖于太阳对二氧化碳和水的作用。
Take the theory of photosynthesis, which holds that the growth of all vegetation, and consequently of animals, depends on the action of the sun on carbon dioxide and water.
绿叶植物细胞的工作就像微型加工厂一样，将阳光，二氧化碳和水转化为糖和淀粉，并且同时储存植物本身所需的能量。
Cells in the green leaves of plants work like tiny factories to convert sunlight, carbon dioxide, and water into sugars and starches, stored energy that the plants can use.
植物生产力是衡量光合作用过程速率的一种方法，绿色植物利用这一过程将太阳能，二氧化碳和水转换成糖，氧气，最终成为植物组织。
Plant productivity is a measure of the rate of the photosynthesis process that green plants use to convert solar energy, carbon dioxide and water to sugar, oxygen and eventually plant tissue.
该纤维完全不使用石油等化工原料，其废弃物在土壤和海水中的微生物作用下，可分解成二氧化碳和水，不会污染地球环境。
The fiber doesn't use oil, and other chemical raw materials, its waste in soil and water, the microbes may be broken down into carbon dioxide and water, not polluting the earth environment.
在远离太阳的外太阳系，在木星轨道之外，温度低到足以使冰从水以及甲烷和二氧化碳等气体中形成。
Far from the sun, in the outer solar system, beyond Jupiter's orbit, temperatures are low enough to permit ices to form out of water and out of gases like methane and carbon dioxide.
正如我们所说，这些热液喷口正在向海洋深处释放这种强热的水，含有一种叫做硫化氢的化学物质，和一种气体，二氧化碳。
As we said, these hydrothermal vents are releasing into the ocean depth this intensely hot water that contains a chemical called hydrogen sulfide, and also a gas, carbon dioxide.
正如我们所说，这些热液喷口正在向海洋深处释放这种强热的水，含有一种叫做硫化氢的化学物质，和一种气体，二氧化碳。
As we said, these hydrothermal vents are releasing into the ocean depth this intensely hot water that contains a chemical called hydrogen sulfide, and also a gas, carbon dioxide.
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