It takes more than twice the energy use, and methane production almost triples in grass-fed beef.
但是这样的生产需要超过两倍的能量，并且甲烷的产量几乎是青草饲养肉牛的三倍。
The static and dynamic tests of methane production from food wastes hydrogen-fermentation residue were done.
试验结果表明：产氢残渣进行甲烷发酵是可行的。
The invention relates to a physical simulation device and a simulation method for coal bed methane production.
本发明涉及一种煤层气生产物理模拟装置及其模拟方法。
The analysis of simulation results demonstrates the program is reliable in coalbed methane production forecast.
分析预测结果证明，该软件用于煤层气产能预测是可靠的。
The radial horizontal bores can connect the new flowing channels of gas to increase the coal-bed methane production.
这些径向水平钻孔的形成可以沟通新的瓦斯流动通道，提高煤层气产量。
Predicting the coalbed methane production after fracturing accurately is the key to exploitation of coalbed resource.
正确预测煤层气压裂井产能是煤层甲烷资源开发的关键。
Different methane production rates are found in the paddy fields treated by different fertilizers and rice varieties.
在不同施肥及水稻品种的稻田土壤中也观测到不同的甲烷产生率。
This model was verified with experimental data, it showed that the model could predict accumulative methane production.
试验数据验证结果表明，该修正经验模型能够较好地对厌氧消化累积产气量进行预测。
Abstract: Improving coal methane production is an important subject in the current research for coal methane exploration.
摘要如何提高煤层气产量是目前煤层气开采研究中的重要课题。
Tea saponin inhibited protozoa and then reduced methane production, while it did not have significant effect on methanogens.
这些结果表明，茶皂素可以抑制原虫，从而抑制甲烷的生成。
Heat generated by a data centre could also be used to more efficiently process the animal waste and thus increase methane production.
由数据中心所产生的热量也可以被用来更为高效地处理动物粪便，从而提高沼气的产量。
A lot of researches have pointed out that the recycle of aerobic-treated leachate can affect the methane production in landfill.
同时许多研究也发现，渗滤液好氧处理后回灌会对填埋场的产甲烷作用形成一定的影响。
So it is very important to decrease the methane production for increasing energy utilization rate and improving the environment.
因此，减少瘤胃内甲烷的生成对提高饲料能量利用率和改善环境具有重要意义。
The dynamics of benzoate degradation, the formation and utilization of acetate and methane production, and H_2 partial pressure were measured.
测定了苯甲酸降解、乙酸消长和甲烷形成的动力学和H_2分压。
Based on in vitro batch incubation, different methane production of two diets with different forage:concentrte ratios(2:8 and 3:7) was compared.
本试验应用体外批次培养法，研究了不同精粗比（2：8与3：7）日粮甲烷产量的差异。
The team documented errors in the approach, which the EPA and IPCC adapted from a method used to estimate methane production from anaerobic digesters.
该小组证实了这种办法中的错误，而EPA和IPCC采用的这种方法本是用以评估消化器甲烷排放的。
Methane and water released on Mars should show distinctive ratios for isotopes of hydrogen and carbon if life was responsible for methane production.
如果火星上的甲烷是生命现象产生的，那么释放出的甲烷和水应该明显表现出氢和碳的同位素比。
Now it aims to speed up the methane production cycle from years to a matter of days at the same time as cutting the need for more land to bury garbage.
现在他们的目标是加快甲烷产品的生产周期，从几年变成几天，同时减少对掩埋更多垃圾的土地需求。
Finally, the article also gave detailed discussions on the calculation of methane production according to the amount of COD removed from organic matters.
最后还对从有机物的COD计算甲烷产量作了详细的讨论。
Arrow plans a much smaller LNG plant across the bay from Curtis Island at Fisherman's Landing, which would take its coal bed methane production for export.
Arrow计划在与柯蒂斯岛隔海相望的Fisherman ' sLanding修建一座规模小很多的液化天然气工厂，所生产的煤层气将用于出口。
The present research was conducted to investigate the influence of saponins on rumen fermentation and methane production in vitro and growth performance of growing Boer goats.
本课题以皂甙为试验材料，研究了皂甙对瘤胃体外发酵和甲烷产量以及动物生长性能的影响。
The competitiveness of coal-derived natural gas lies in the use of low-price, low-quality coal and technologies needed are coal gasification and methane production techniques.
其竞争力主要源于可采用低价劣质煤，需要选择的主要是煤气化及甲烷化技术。
The effect of nitrogen fertilization on methane production is thoroughly reviewed and the mechanism of how nitrogen fertilizers affect methane production in soils is discussed.
本文综述了氮肥对土壤甲烷产生的影响，探讨了氮肥影响甲烷产生的机制。
As shown by experimental results, the phase of acidification is fairly sensitive to the changes of above mentioned factors while the phase of methane production is quite stable.
实验结果表明，酸化相对上述因素的变化比较敏感，产甲烷相则非常稳定。
This article describes the obvious advantages of synthetic gas or methane production by water coal slurry gasification through pit mouth gasification rather than single unit chemical plant.
论述水煤浆气化制合成气或甲烷时，用坑口气化取代单项化工装置前气化，具有明显的优越性。
With intervals of every 11 days, 4 times of semi-successional addition of green grasses and pig manure (9:1) to the fermentor as the fermenting materials for methane production were applied.
每隔11天以青草和猪粪(9：1)连续补料四次，每次补料后主要微生物生理群的消长趋势基本一致。
Also, things like the damming of rivers has caused increased sediment production, not to mention the addition of more carbon dioxide and methane in the atmosphere.
此外，河流筑坝等工程也增加了沉积物的产量，更不用说大气中二氧化碳和甲烷的增加。
Moreover, because gas is frequently encountered in association with oil, the production, refinement, transportation, and storage of crude oil is also a source of methane emissions.
此外，由于天然气常与石油混在一起，原油生产、提炼、运输和储存也是一个甲烷排放来源。
Moreover, because gas is frequently encountered in association with oil, the production, refinement, transportation, and storage of crude oil is also a source of methane emissions.
此外，由于天然气常与石油混在一起，原油生产、提炼、运输和储存也是一个甲烷排放来源。
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