这对于地外生命学来说意义重大。因为生命建立在碳的基础上，而由碳和氢构成的甲烷是新陈代谢的副产品。
That has big implications for extraterrestrial biology, since life is based on carbon, and methane - which is made up of carbon and hydrogen - is a byproduct of metabolism.
尽管生物本质上是碳元素组成的各种形式，但是生物不能用自身的基本构成来处理碳元素。
Although life is, in essence, a complicated form of carbon chemistry, living creatures cannot process carbon in its elemental form.
以碳元素为基础构成的分子比其它所有元素构成的分子的总数还要多。
CARBON is the basis of more molecules than all the other elements put together.It is, though, surprisingly inert.
海洋的浮游生物即构成了食物链底端，又是我们地球碳-氧循环的交换场。
The ocean's planktons form the bottom of both the food chain and the bulk of the carbon-oxygen cycle for our planet.
以碳元素为基础构成的分子比其它所有元素构成的分子的总数还要多。
CARBON is the basis of more molecules than all the other elements put together.
研究发现，受BP漏油事故影响且经FDA检测的虾类产品中有大约50%产品的有害碳物质含量超出了该组织视为对怀孕妇女安全构成危险的控制临界值。
The study found about 50 percent of the shrimp the FDA tested after the BP spill had harmful carbon levels exceeding the level of risk deemed by the group to be safe for pregnant women.
它主要由电离氢分子和氦构成，同时还包括碳、氧、氮和其他原子，使得其呈现纷繁的混合色彩。
It is mostly made of ionized hydrogen and helium, though carbon, oxygen, nitrogen and other atoms are present, producing the complex color blend visible here.
科学家们称发现了一颗碳元素含量超高的钻石星球——星球上的山脉都是由钻石构成的。
Scientists discovered a massive planet that is so abundant in carbon that any mountains on it could be made from diamonds.
通常，硅碳化合物通常由加热的沙子(通常由石英构成，或称二氧化硅)和石油或煤炭中提取的碳放在电气炉内反应而得到。
Normally, silicon carbide is produced by heating sand (which is made of quartz, or silicon dioxide) in an electric furnace with carbon made from oil or coal.
聚苯乙烯泡沫塑料是一种加工塑料，主要由被称作苯基团的碳环和氢环构成，苯基团连接到能降解成更小苯乙烯单元的长链碳氢化合物上。
Polystyrene foam is a manufactured plastic primarily made up of rings of carbon and hydrogen, called phenyl groups, attached to long hydrocarbon chains that can break into smaller styrene units.
构成全球碳循环的一个关键环节河流碳的输出及循环过程与近岸水域环境、海洋碳库变动及全球气候系统紧密相关。
The export and cycle processes of the riverine carbon are closely related to coastal zone environment, dynamics of the ocean carbon pool and the global climate system.
本文分析了国际碳市场的构成并对其经济特征进行研究。
The article intents to analyze the composition of the international carbon market and its economic features.
结果表明：缩短停留时间和高温处理使得构成纳米炭纤维催化生成的炭含量增加，碳层的结构接近石墨晶体的有序结构。
The result indicates that shortening of reaction time and graphitic treatment make catalytic carbon increasing and carbon layer incline to the order structure of graphitic crystalline.
能源危机以及由于大量燃烧碳及烃类引起的环境问题，正在对现代社会构成越来越大的威胁。
Energy crisis as well as environmental problems caused by massive combustion of carbon and hydrocarbon constitute a harder and harder menace to modern society.
炭黑原生粒子表面由细小的石墨状晶体无规排列构成，并存在富勒结构碳，呈凹凸不平的原子台阶形貌。
The surface of primary particle of CB consists of randomly ranged fine graphite-like crystals with Fullerene structure carbon, and shows rough atomic steps' morphology.
卟啉的平均分子结构简式衡量其取代基的组成，尤其对地质体中相同碳数的卟啉“ 混合物” 大环外取代基的构成十分有效。
The average condensed formula of molecular structure is effective to derive the composition of the peripheral substituents of porphyrins, especially geoporphyrins with identical carbon numbers.
地球上的生命是由碳元素构成的，他说，而电脑是由硅元素构成的，但那不是最重要的区别。
Earthly life is carbon based, he notes, and computers are silicon based, but that is not a major distinction.
黑金刚石是由碳元素构成的。
萃取物的结构单元主要由芳环和脂环所构成，萃取物的平均分子量为448，芳碳率为0.53。
The structural unit of extract consists primarily of aromatic rings and cycloparaffinic rings. The average molecular weight of the extract is 448. The aromaticity is 0.53.
碳的由碳构成的，含碳的，与碳有关的或产生碳的。
蛋白质是生命的物质基础，由氮、氢、氧、碳元素构成。
And protein is a life, is entity, protein means for little traps called nitrogen, hydrogen, carbon and oxygen working together.
这么大的内压，再加上白矮星内核中大块的碳，就形成了所谓的钻石。钻石是碳原子的一种特殊构成。
And that pressure, acting on the carbon-rich makeup of the White Dwarf, may have crystallized much of it to the particular form of carbon we call diamond.
而氖、氩气下的生成物含有石墨结构成份的巴基管和其它无定形碳结构。
It is found that the resultant made with Helium mainly contains Buckball while the resultants made with Neon and Argon contain Buckytube and other non pattern carbon structure.
汽油几乎全是由碳元素构成的。
所有的营养物质和水除了矿质元素被划分为有机化学物质，因为它们包含了碳元素构成的。
All of the nutrients except for mineral elements and water are classified as organic chemicals because they contain the element carbon.
脂肪像糖一样，也是由碳、氢、氧原子构成的。
Fats are made up of carbon, hydrogen and oxygen atoms, as sugars are.
脂肪像糖一样，也是由碳、氢、氧原子构成的。
Fats are made up of carbon, hydrogen and oxygen atoms, as sugars are.
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