A tax on upstream carbon sources is one easy way to put a price on carbon emissions, although some countries may wish to use other methods, such as emissions trading schemes.
对上游碳资源征税是为碳排放定价的一种简单方法，尽管一些国家可能希望使用其他方法，例如碳排放交易计划。
Novomer prioritizes carbon sources based on purity and concentration of CO2.
Novomer公司更看重纯净度更高的碳来源以及集中于二氧化碳上。
Myth 4: nuclear power is cheaper than other low-carbon sources of electricity
谬论四：核能比其他低碳电力资源更廉价
Results: The effects of variety carbon sources on the enzyme productivity was not apparent.
结果：碳源种类对酶合成水平影响不大。
Also the fermentation conditions were studied with different carbon sources and nitrogen sources.
同时，改变发酵液中不同氮源和碳源，对突变株的发酵条件进行了比较研究。
There was low nitrogen removal rate (18.8%) by endogenous respiration without carbon sources added.
当不投加外部碳源时（内碳源），通过内源呼吸代谢作用进行反硝化效果最差，脱氮率仅有18.8%。
The results showed that different carbon sources could affect the isolate toxigenicity significantly.
结果表明：不同碳源对菌株产毒性影响显著。
It is necessary to look for low-cost external carbon sources for reducing the operating cost in winter.
为了降低冬季运行费用，有必要寻找廉价的外碳源。
The study on treatment contain other carbon sources of hydroxyl benzene wastewater has certain significance.
该研究对处理含有其它碳源的含酚废水具有一定的意义。
Glycerol and commercial sugar as carbon sources could contribute to the synthesis of free radical scavenger.
混合碳源试验结果表明，蔗糖与甘油搭配，有利于自由基清除剂产量的提高。
Among the treatments, the utilization ratios of carbon sources by drab soil microbe had a little difference.
潮土各处理之间，微生物对碳源的利用率差异较小。
The PHBH resin is derived from carbon sources such as sucrose, fatty acids or molasses via a fermentation process.
该PHBH树脂是来自碳来源，如蔗糖，通过发酵过程脂肪酸或糖蜜。
A complete aerobic denitrification function can take place when there are enough degradable organic carbon sources.
当存在足够的易降解有机碳源时，能发生完全的好氧反硝化作用。
The effects of aluminium sources, carbon sources and additives on AlN powder structure and morphology were studied.
采用微波碳热还原法制备了氮化铝粉末，研究了铝源、碳源和添加剂对制备氮化铝粉末的影响。
The more suitable carbon sources for mycelial growth in liquid medium (mycelial dry weight) were fructose and maltose.
液体培养时，以果糖为碳源时菌丝干重值最大，麦芽糖次之。
Effects of various carbon sources and nitrogen sources on production of xylanase and protease by strain WL-11 were studied.
结果表明，碳源对WL-11木聚糖酶的合成具有诱导或抑制作用，对其蛋白酶的合成影响并不显著；
Marine strain S-12-86 could utilize maltose, starch, glycerol and glucose as carbon sources but couldn't use mannitol or sucrose;
结果表明，菌株S-12-86能够利用麦芽糖、淀粉、甘油和葡萄糖作为碳源，不能利用蔗糖与甘露醇；
By using hydrocarbons as carbon sources and ferrocene as catalyst, the carbon microspheres were synthesized in different temperatures.
以烃类为碳源，二茂铁为催化剂，在不同温度下制备碳微球。
Most of the price hikes are a consequence of rising energy costs, in part because coal and gas are replaced by more expensive low-carbon sources.
价格上涨是由于能源成本上涨的结果，部分原因是煤和天然气被较昂贵的低碳能源所取代。
The decomposition of litters is important to the nutrient cycling of the ecosystems and also is the one of the carbon sources of the ecosystems.
土壤凋落物的分解不仅是生态系统养分循环的重要环节，也是生态系统碳释放源之一。
On the whole, the utilizations that the red soil microbe utilized polymer carbon sources especially tween 40 and tween 80, were at a high level.
总体上，红壤微生物对聚合物类碳源，尤其是对其中的吐温40和吐温80的利用率较高。
Carbon nanospheres were synthesized by an inorganic chemical reaction with calcium carbide and chloroform as carbon sources in a sealed autoclave.
以碳化钙和四氯化碳为碳源，反应物通过无机化学反应在密封高压釜中制备了纳米碳球。
Soluble hexoses (fructose and glucose), not starch and sucrose, were the major carbon sources for nocturnal malate accumulation in the chlorenchyma.
可溶性已糖（葡萄糖和果糖）是绿色组织中夜间苹果酸累积的主要碳源。
The variation of denitrification potential and denitrification rate after addition of external carbon sources through SBR reactor intermittent test was studied.
通过SBR反应器间歇试验，研究了投加外碳源后系统的反硝化潜力和反硝化速率的变化。
In wastewater biological nitrogen and phosphate removal processes, microorganisms need to consume certain organic carbon sources both in denitrification and phosphorus uptake.
污水生物脱氮除磷工艺中，微生物在反硝化和吸磷时需要消耗一定的有机碳源。
In wastewater biological nitrogen and phosphate removal processes, microorganisms need to consume certain organic carbon sources both in denitrification and phosphorus uptake.
污水生物脱氮除磷工艺中，微生物在反硝化和吸磷时需要消耗一定的有机碳源。
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