丙烷

L and 72L liquefied propane cylinders of liquefied propylene; 18L, 26L, 28L, 35L, 70L, 80L, 105L, 118L Series liquefied bromomethane cylinders; 400L, 800L liquid chlorine, liquid ammonia cylinder; 720L cylinders and three sulfur 926L, 1180L large size cylinders; 40L, 60L, 82L, 118L, 400L, 800L, 926L, F21, F22, R32, R134a refrigerant and other agents and other specifications of industrial gas cylinders.

b。 12.2L、40L液化丙烷和72L液化丙烯钢瓶；18L、26L、28L、35L、70L、80L、105L、118L系列液化溴甲烷钢瓶；400L、800L液氯、液氨钢瓶；720L三氧化硫钢瓶和926L、1180L大规格钢瓶；40L、60L、82L、118L、400L、800L、926L、 F21、F22、R32、R134a等各种制冷剂及其它规格工业气瓶。

Based on the Compass force field,the relationship between microstructure and macro-properties of carbon dioxide/propylene oxide/γ-butyrolactone tricopolymer was investigated by the'Materials Studio' simulation successfully.

基于Compass力场，利用Materials Studio工作站对二氧化碳/环氧丙烷/γ-丁内酯三元共聚物分子的微观结构与宏观性质间的关系进行了分子模拟研究。

In this paper isopropyl -γ- chlorobutyrate was prepared from γ- butyrolactone by one - step. The effects of molar ratio of reactants, reaction temperature, reaction time on the yield of product were discussed, the optimum reaction condition was obtained.

一氯代丁酸异雨酯是合成新型拟除虫菊酯中间体环丙烷较酸及高效抗菌新药丙氟见酸和环丙氟院酸中间体环丙胺的重要原料［''］。

It was found that the dehydration of ethanol over zeolite catalyst followed carbonium ion reaction mechanism, and thus the formation of ethylene, propylene and propane as the main products was well explained.

乙醇在分子筛催化剂上催化脱水反应过程遵循正碳离子机理，较好地解释了主要产物乙烯、丙烯和丙烷的生成机理。

A pair of specific primers was designed according to the reported cDNA sequence of the DC-ACO(Dianthus caryophyllus L.ACC Oxidase),and a partial sequence of the gene was amplified from genomic DNA of a carnation variety 'Master' by PCR.

据已报道的香石竹氨基环丙烷羧酸氧化酶基因的cDNA序列设计特异引物，以香石竹品种&Master&基因组DNA为模板，用PCR方法克隆出香石竹ACO基因的部分序列。

Chloric to oxygen of domestic and international annulus propane produces a technology to developed tendercy and market supply and demand to make overview.

对国内外环氧氯丙烷生产技术发展动向和市场供需作了综述。

Think annulus oxygen chloric propane regards important and organic raw material as one of breed, in our country development foreground is valued.

认为环氧氯丙烷作为重要有机原料品种之一，在我国发展前景看好。

The intermediate decyl-glycidol ether of Gemini phosphate surfactant was synthesized with decanol and epichlorohydrin in the presence of phase-transfer catalyst; the intermediate decyl digomeric glycol of Gemini phosphate surfactant was prepared by opening ring reaction of decyl glycide ether and glycol in the presence of potassium as catalyst; and the influence of type and dosage of phase-transfer catalysts was studied.

以正癸醇与环氧氯丙烷为原料在相转移催化剂存在的条件下合成Gemini磷酸酯表面活性剂的中间体I-正癸基缩水甘油醚，讨论催化剂种类及用量对反应的影响；以乙二醇和正癸基缩水甘油醚为原料，金属钾为催化剂合成Gemini磷酸酯表面活性剂的中间体Ⅱ-正癸基低聚二醇，讨论催化剂种类与用量对反应的影响；以P2O5与正癸基低聚二醇为原料合成Gemini磷酸酯表面活性剂，讨论投料比、反应温度和反应时间等因素对反应的影响。

Their catalytic performance for the oxidative dehydrogenation of propane to propene had been investigated.

实验结果表明V-Fe-O和Cr-Fe-O催化剂表现出较好的丙烷氧化脱氢制丙烯催化性能。

Star polymer ; 1; 1-Trihydroxymethylpropane ; Sebacic acid diacetic anhydride ; PEG

星型聚合物； 1； 1-三羟甲基丙烷；癸二酸二乙酸酐；聚乙二醇

However, as the name（read－only memory）implies, CD disks cannot be written onorchanged in any way.

然而，正如其名字所指出的那样，CD盘不能写，也不能用任何方式改变其内容。

Galvanizes steel pallet is mainly export which suits standard packing of European Union, the North America. galvanizes steel pallet is suitable to heavy rack. Pallet surface can design plate type, corrugated and the gap form, satisfies the different requirements.

镀锌钢托盘多用于出口，替代木托盘，免薰蒸，符合欧盟、北美各国对出口货物包装材料的法令要求；喷涂钢托盘适用于重载上货架之用，托盘表面根据需要制作成平板状、波纹状及间隔形式，满足不同的使用要求。