Carbon dioxide is a source of plant food.
二氧化碳是植物食物的来源。
Glucose is usually used as a carbon source for fermentation.
葡萄糖通常是发酵的碳源。
Biofuel can be theoretically produced from any (biological) carbon source.
从理论上说，生物能源可以由任何(有机)碳源加工而成。
Cutting that source of black carbon could help reduce the estimated 1.5 million premature deaths per year attributed to biofuel soot, Jacobson said.
减少这种黑碳来源有助于减少由于生物燃料烟尘导致的每年大约150万过早死亡，雅各布森说。
Such an environment would have to contain the basic ingredients of life — including water, organic carbon and a source of energy to sustain the microbes' metabolism.
这样的火星环境也许包含了一些基本的生命要素——包括水，有机碳和维持微生物新陈代谢的能量源。
During the biodegradation process, Tween 80 can be utilized by microbe as a carbon source.
在与菲共同降解的过程中，吐温80亦能作为碳源被降解微生物利用。
Thick diamond films were deposited by DC plasma jet using methane as carbon source.
以甲烷为碳源气体，用直流等离子射流法制备了金刚石膜。
Single cell protein (SCP) production was studied by solid state fermentation using grape residue as a sole carbon source.
以葡萄废渣为唯一的碳源，对固体发酵生产单细胞蛋白（SCP）进行了一系列的研究。
Steel is an alloy of iron and carbon. Coking coal is a source of carbon in the smelting process.
钢是铁与碳的合金，焦煤便是熔炼过程中碳的来源。
Although some physical and biological techniques have found their way in carbon dioxide fixation, there is still no proven technology for chemical utilization of such a plentiful carbon source.
人们已提出利用物理和生物方法来解决二氧化碳问题，但对二氧化碳这样一个巨大的碳资源，还没有特别有效的化学利用方法。
The best carbon source is maltose. The best nitrogen source is asparagine.
最佳碳源为麦芽糖，最佳氮源为天门冬素；
Results show that carbon source, nitrogen source affected plasmid DNA yield significantly.
实验结果表明：碳源、氮源对质粒dna产量有明显的影响。
Starch and yeast powder are the best carbon source and nitrogen source through studies on fermentation culture medium.
对发酵培养基进行了研究，淀粉、酵母粉是阿维菌素发酵的最合适碳源物质和氮源物质；
The results indicate that the normal operation of reactor only needs the lower concentration of carbon source and nitrogen source to obtain perfect result.
结果表明，较低浓度的碳源和氮源即可维持反应器的正常运行，达到理想的脱色效果；
More than 37% of the world's land is used for agriculture, much of it ground that was once forested--and deforestation is a major source of carbon.
全世界超过37%的土地是农田，而其中很大一部分原来是森林，森林的砍伐成为碳源增加的一个主要原因。
In the anoxic phase, without adding external carbon source, internal carbon source is used for denitrification.
在缺氧阶段，可利用内碳源实现剩余硝态氮的反硝化。
But soot - also known as black carbon - from millions of villages like this one in developing countries, is emerging as a major and previously unappreciated source of global climate change.
但是来自于成千上万个象这样的小村庄的烟尘——又叫黑炭，正在成为全球气候变化的一个曾被忽视的重要根源。
CCS aims to capture carbon dioxide at its source, transport it along pipelines and store it in natural reservoirs, such as depleted gas and oil fields.
CCS旨在从排放源捕获CO2，通过管道运输并将其封存在天然的储存库，比如枯竭的油气田中。
The most obvious source of extra cash is the carbon market, or preferably a carbon tax.
最明显的筹集额外款项的地方是碳市场。或者还有更好的方法，即征收碳税。
The UNEP's Steiner says "farming carbon" this way is far cheaper than new technology to capture and store carbon dioxide emissions at their source.
环境规划署的施泰纳表示，这种形式的“农业碳”比从源头捕获并封存二氧化碳的新技术要廉价得多。
Such an environment would have to contain the basic ingredients of life-including water, organic carbon and a source of energy to sustain the microbes' metabolism.
这样的火星环境也许包含了一些基本的生命要素——包括水，有机碳和维持微生物新陈代谢的能量源。
All life on Earth needs water, carbon-based organic molecules, and an energy source, either solar or chemical.
地球上所有的生命都需要水、碳基有机分子和某种能量来源——不是太阳能就是化学能。
"I believe this can be commercially practical with a given concentrated carbon dioxide source such as coal plant," he says.
“我相信如果有一个集中的二氧化碳来源，就像煤电厂一样，这个生产工艺就能得到工业应用，”他说道。
The second source of carbon dioxide lies outside Europe.
第二个二氧化碳的来源在欧洲之外。
This always surprises people, but the global food production system is a really important source of carbon dioxide and other greenhouse gases.
这说来总是令人诧异，但事实上，全球的食物生产是二氧化碳及其他温室气体排放的一个重要来源。
The conversion would turn a profit, but the conversion itself, even before the fuel is used, can be a major source of carbon dioxide emissions.
这种燃料的转化将会使得公司转亏为盈，但转化本身即使是在燃料使用之前都是二氧化碳排放的主要来源。
Barker noted that raising animals for food is one of the largest sources of carbon dioxide and the single largest source of both methane and nitrous oxide emissions.
巴克提到饲养动物作为食物是二氧化碳的一种主要来源，并且是甲烷和氧化亚氮排放的唯一主要来源。
Barker noted that raising animals for food is one of the largest sources of carbon dioxide and the single largest source of both methane and nitrous oxide emissions.
巴克提到饲养动物作为食物是二氧化碳的一种主要来源，并且是甲烷和氧化亚氮排放的唯一主要来源。
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