查询词典 methane

And methane, though it burns more cleanly than coal, absorbs a wider range of wavelengths of the Earth's outgoing radiation than CO2. It therefore traps more heat, making it an even more pernicious greenhouse gas.

而且虽然甲烷燃烧起来比煤更清洁，但它吸收地球发出的辐射线的波长，比CO2吸收的范围更广，因而它吸收更多的热量，使得它成为一种更有害的温室气体。

To determinate the concentration of TiO_2 in functional fiber for labeling purpose,the sample was nitrified with burning and dissolved in mix acid as pretreatment and then its concentration of TiO_2 was determined by spectrophotometric method with ascorbic acid as shelter reagent of Fe~(3+) and Cu~(2+) and diantipyryl methane as developer at wavelength λ=390 nm.

针对功能纤维中添加TiO2的含量测定问题，对功能纤维样品采用高温消化、混酸溶解的前处理方式，以抗坏血酸作Fe3+、Cu2+的掩蔽剂，二安替比林甲烷作为显色剂，用分光光度法在λ=390 nm波长处测定功能纤维中纳米TiO2的含量。

These results indicate that root oxidizes mostly cause difference of methane transport rate in rice varieties.

这说明根氧化力是造成品种间甲烷传输速率不同的主要原因。

Finally, a density functional theory study has been conducted to investigate the reaction mechanism of synthesis of oxygenates and higher hydrocarbons from methane and carbon dioxide at a molecular level for the first time.

本文还采用密度泛函理论，首次系统地从分子水平上研究等离子体直接转化甲烷、二氧化碳为各种含氧化合物、高碳烃的机理。

Methods of methane emission from rice paddies.

水稻田甲烷的减排方法研究及评价。

About 10 to 25 percent of the world's methane emissions come from flooded rice paddies.

全球大约10-25%的甲烷来自于水稻田。

Now there's new focus on a pair of methane sources that we usually don't think of as natural polluters: wetlands and rice paddies.

现在两个过去不认为是自然污染源的甲烷气体排放源又成为了关注的焦点，即湿地和稻田。

Thus, best management of fertilizer application may be an option for mitigating methane emission from rice paddies.

但长期不同施肥处理下甲烷氧化菌活性的变化还有待于进一步研究。

Ce0.35Zr0.55Y0.07La0.03O1.95(OSM=oxygen storage material), La-Al2O3 were prepared by coprecipitation and peptizing method, respectively. Monolith catalysts of Fe2O3 supported on prepared material were obtained by impregnation method and the catalytic activity for methane combustion under low concentration was investigated.

采用共沉淀法制备了高性能低铈储氧材料Ce0.35Zr0.55Y0.07La0.03O1.95和胶溶法制备了耐高温、高比表面的La-Al2O3并以它们为载体，制备了一系列整体式铁基催化剂。

They found that Mars methane is being released as concentrated plumes at specific latitudes .

他们发现，火星上的甲烷作为集中柱被释放在特定的地区。

This one mode pays close attention to network credence foundation of the businessman very much.

这一模式非常关注商人的网络信用基础。

Cell morphology of bacterial ghost of Pasteurella multocida was observed by scanning electron microscopy and inactivation ratio was estimated by CFU analysi.

扫描电镜观察多杀性巴氏杆菌细菌幽灵和菌落形成单位评价遗传灭活率。