甲烷

Governments around the world are battling to cut the amountof greenhouse gases - carbon dioxide, methane, nitrous oxide and fluorocarbons - that are being pumped into the atmosphere.

世界各国政府都在争相减少排放至大气中的二氧化碳、甲烷、一氧化二氮和碳氟化合物等温室气体。

Greenhouse index Net emissions of three major greenhouse gases (carbon dioxide, methane and chloro- fluorocarbons), with each gas weighted according to its heat trapping quality, in carbon dioxide equivalents and expressed in metric tons of carbon per capita.

温室指标指三种主要的温室气体（二氧化碳、甲烷和氟氯烃）的净排放量，每种气体都按其热吸附质能加权，折算成二氧化碳当量，并以人均碳公吨表示。

My company's main products are R11, R12, R13, R22, R227, R502, R141b, R142b, R152a, R113, R134a, R402A (HP80), R402B (HP81), R404A (HP62), R123, R407C, R410A, R507 , Tsinghua series refrigerants, as well as some related products such as dichloromethane, chloroform, halons, refrigeration oil and blowing agent (R11, R245) and so on.

我公司的主要产品有 R11 、 R12 、 R13 、 R22 、 R227 、 R502 、 R141b 、 R142b 、 R152a 、 R113 、 R134a 、 R402A （ HP80 ）、 R402B （ HP81 ）、 R404A （ HP62 ）、 R123 、 R407C 、 R410A 、 R507 、清华系列制冷剂，以及一些相关产品如二氯甲烷、三氯甲烷、聚四氟乙烯、冷冻油及发泡剂（ R11 、 R245 ）等。

It is also manufactured by thermal cracking of hydrocarbons , or by partial combustion of methane with oxygen.

还可以通过碳氢化合物的热裂解或甲烷同氧的不完全燃烧来

The structure of the target compound was confirmed by elementary analysis and nuclear magnetic resonance spectroscopy .

通过元素分析、核磁共振氢谱对其结构进行了确认，并测得其在二氯甲烷溶液中的紫外吸收光谱和荧光光谱。

The results indicated that the highest yield of BOC-indigo was 97% in CH2Cl2, and the lowest one was in PGMEA. It showed that the yield of BOC-indigo increased with high polarity and low molecular volume of solvent.

从实验结果得知，以极性较强且分子体积较小的二氯甲烷作为反应溶剂，其合成隐性颜料产率可达到97.2%，较四氢呋喃产率多4.4%，且较丙二醇甲醚乙酸酯产率多7.4%。

The method was shown to be simple, sensitive and precise,so it can satisfy the demand of real time deternation of methyl bromide.

该方法简单、灵敏、准确，满足了熏蒸过程中对溴甲烷浓度进行实时检测的要求。

Wood packing materials fumigated with methyl bromide should be accompanied with an official certificate attesting to the treatment.

用溴甲烷熏蒸处理过的木质包装应附有官方证书证明进行了这种处理。工匠非常小心地把木头弄薄。

Wood packing materials fumigated with methyl bromide should be accompanied with an official certificate attesting to the treatment.

用溴甲烷熏蒸处理过的木质包装应附有官方证书证明进行了这种处理。假定重叠式的几何形是由一个甲基相对另一个甲基做刚体转动而得。

Objective To confirm that volatile organic compounds monitor is much better than methyl bromide lamp in detecting residue concentration from methyl bromide.

摘要目的挥发性有机化合物检测仪定量检测溴甲烷余留残毒浓度的科学方法应用到船舶熏蒸处理的卫生安全工作的重要性和紧迫性。

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。