甲烷

The first step reaction of methanol hydrochlorinate is methanol react with hedrogen chloride to produce monochloro methane and water, if the methanol can meet the request, the high pure monochloro methane can be refined.

甲醇法第一步反应为甲醇与氯化氢反应生成氯甲烷和水，如果所用原料甲醇满足要求，反应产物经过简单的精制即可得到高纯度的一氯甲烷。

In this paper,the response factors of thermal conductivity detector of monochloromethane and dimethyl ether are estimated and calculated by using group cross section area method,molecular diameter method and homologue linear rule method.

热导校正因子的估算以及在工业氯甲烷生产中的应用李洪宽（山东省化工研究院色谱中心济南250014）关键词气相色谱法，一氯甲烷，热导检测器，校正因子1前言热导检测器定量校正因子的测定和计算是气相色谱热导定量的关键。

It is necessary to carry out a thorough study on pest control technology with DMDS, with an expectation of obtaining a new fumigant of methyl bromide alternative.2. Investigation of the toxicity of fumigation on adult and mixed stages of the three most tolerant insect species -- Sitophilus oryzae, Rhyzopertha dominica and Tribolium castaneum -- under a range of EtF、DMS and DMDS doses in a Flow-through Fumigation System shows that the FTFS procedure offers a constant concentration of fumigant with low CO2 concentrations and ensures that the fumigant toxicity is effectively not compromised by CO2. In comparison with chamber fumigation method, the toxicity data of EtF、DMS and DMDS obtained from this experiment is more accurate by using FTFS.

主要研究结果如下：1、甲酸乙酯和二甲基二硫对仓储害虫具有良好的控制作用，应加快甲酸乙酯替代溴甲烷防治仓储害虫开发应用，同时，二甲基二硫是很有潜力的仓储害虫防治熏蒸剂，要深入进行二甲基二硫控制有害生物的技术研究，以期获得新的溴甲烷替代熏蒸剂。2、利用循环熏蒸系统测定了甲酸乙酯、二甲基二硫和甲硫醚对米象Sitophilus oryzaeL。

Researching the solvency of diantipyrinylmethane, the author adopted to solubilize diantipyrinylmethane in the medium of hydrochloric acido 5 Researching the interference of several common foreign ions, through enrichment and seperation, then determining its recoveries.

4研究了二安替比林甲烷的溶解情况，确立了在盐酸体系中溶解二安替比林甲烷。 5试验了几种常见金属离子的干扰情况，并通过富集分离，测定了其回收率。

The confirmation was made spectroscopically using large ground-based telescopes by finding precise colors absorbed on Mars that match those absorbed by methane on Earth.

使用大型地面望远镜分光镜找到火星吸收的确切颜色，符合地球上甲烷吸收光线所产生的颜色，从而确定了甲烷存在这一结论。

Secondary fermenters:key organisms in the conversion of complex organic materials to methane (espacially the H2-producing fatty acid-oxidizing bacteria).23、List two syntrophic microorganisms and describe a bit.

乙醇发酵菌发酵乙醇产生H2和乙酸，产甲烷菌消耗利用乙醇酵解菌产生的H2，总反应为产能反应，产甲烷菌不能直接利用乙醇。

Identification and mapping of the small-amplitude faults in the coalfield and prediction of the methane saturated formations in coal province based on the AVO analysis in a thin-layered cross-section that offered by Tesseral / TetraSeis .

在煤田中小幅度断层的识别和制图以及在大煤区中由Tesseral／TetraSeis提供的基于在一个薄层剖面中的 AVO 分析来预测甲烷饱和地层等来自于前苏联的技术，有助于新矿脉的设计，了解水动力并了解甲烷运移的可能途径

Polyester nanofiber can be prepared by electrospinning process from PET chips separately dissolving in three kinds of solvents,namely,the mixture solvent of phenol and tetrachloroethane ,trifluoroacetic acid and the mixture solvent of trifluoroace- tic acid and dichlormethane.

利用静电纺丝法制备聚酯纳米纤维，选择苯酚和四氯乙烷，三氟乙酸，三氟乙酸和二氯甲烷3种溶剂分别溶解PET切片进行静电纺丝，通过扫描电子显微镜对纤维表面形态进行观察，结果表明：三氟乙酸和二氯甲烷混合溶剂溶解PET制备的电纺纤维较好。

Preparation of trifluoroacetaldehyde and trifluoroacetic acid by trifluoroethanol catalytic oxidation;2. Polyester nanofiber can be prepared by electrospinning process from PET chips separately dissolving in three kinds of solvents,namely,the mixture solvent of phenol and tetrachloroethane, trifluoroacetic acid and the mixture solvent of trifluoroace- tic acid and dichlormethane.

利用静电纺丝法制备聚酯纳米纤维，选择苯酚和四氯乙烷，三氟乙酸，三氟乙酸和二氯甲烷3种溶剂分别溶解PET切片进行静电纺丝，通过扫描电子显微镜对纤维表面形态进行观察，结果表明：三氟乙酸和二氯甲烷混合溶剂溶解PET制备的电纺纤维较好。

We studied chemical reaction between nitrogen oxides with dichloromethane, trichloromethane, tetrachloromethane and 1, 2-dichloroethane by Laser Magnetic Resonance.

用激光磁共振方法研究二氯甲烷、三氯甲烷、四氯甲烷、1，2-二氯乙烷与氮氧化物在火花放电、紫外光照射条件下的化学反应。

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。