Major factors that affected the degree of esterification and1,6-anhydro ring formation were studied to produce the title compound which met the European Pharmacopoeia standard. 研究了影响酯化率与成环率的主要因素,控制合适的酯化、解聚和纯化条件,得到的依诺肝素钠成品符合欧洲药典标准。
Different body materials and seal ring compound folder layer are suitable for different medium. 更换阀体材质和密封圈复合夹层可适用不同介质。
Located along the East2nd Ring Road, right beside the Swissotel, with easy access to the Sanlitun Embassy Area, East Gate Plaza is a comprehensive and modern compound designed for maximum comfort. 东环广场毗邻东二环,紧邻港澳中心,是一家为客户提供高享受的现代化综合性设施。
The tendency of a ring compound to polymerize depends upon the extent of ring strain. 环状化合物的聚合倾向,取决于环的张力大小。
Multi-layer Compound Coating on Cast Iron Piston Ring by Multi-arc and Magnetron Sputtering Ion Compound Plating Technique 铸铁活塞环表面多弧&磁控溅射复合镀研究
Relation between the chemical shift of a carbon atom on the benzene ring of a phenolic compound and its net charge(ⅰ)& phenolic compounds with only phenolic hydroxyl groups no other substituents 酚类化合物苯环碳原子的化学位移与其净电荷的关系(Ⅰ)&除酚羟基外无其他取代基的酚
Synthesis of Oxazolidone Parent Ring The preparation of inclusion compound of sulfamethoxazol-β-cyclodextrin 恶唑烷酮母环的合成方法磺胺甲基异恶唑-β-环糊精包合物的研制
Link Ring Casting and Forging Compound Plasticity Forming Technology 联接环铸锻复合塑性成形工艺
In order to find the post-buckling path for ring-stiffened shells under hydrostatic pressure and consider the practical shapes of ring sections, the Compound Strip Method ( CSM) is applied to the post-buckling analysis of ring-stiffened cylindrical shells. 为了研究水压作用下的加肋柱壳的后屈曲状况,并且能考虑到肋骨的实际截面形状和分布情况,本文将复合有限条方法应用于环加肋圆柱壳的后屈曲分析。
A New Bridged Ring Compound from Hypericum bellum 美丽金丝桃中的一个新桥环化合物
Study on the Synthesis of Nitric Heterocyclic Ring Compound and Its Derivatives 含氮六元杂环类化合物合成研究
Application of the Ring Meshwork Tank in the City Compound Power Grid Alteration Process 城市配电网改造中环网柜的应用
A Rapid Method of Counting the Ring Number of a Bridged Polycyclic Organic Compound 一种快速计算多环桥环烃环数方法
Development of NBR/ PVC Ring Compound for Synthetic Fibre Spinning 丁腈橡胶/聚氯乙烯共混型纺化纤胶圈胶料的研制
Alder. Along with the development of the science and technology, Intramolecular Diels-Alder reactions and Hetero-Diels-Alder reactions appear. They are important methods of synthesis of hexatomic ring and hexabasic heterocyclic compound. 随着科技的发展,又出现了分子内的Diels-Alder反应以及杂Diels-Alder反应,它们是有机化学中合成六元环状化合物、六元杂环化合物的重要手段。
Determining Depth of Extruding Holes in Ring Type Die Plate for Production of Compound 挤压造粒环模模板压缩孔深度的研究
Stability research of ring stiffened shells using compound strip method 用复合有限条&气泡函数法研究加肋壳体稳定性
Research of Ring Compound Brush-plating 钢领复合刷镀的研究
The fact of reaction rate decreasing linear with the steric hindrance of ester groups shows that the formation of ring coordination compound between rare earth ions and salicylate ester takes an important role in the nitrosation reaction. 反应速度随酯基基团空间位阻效应呈线性下降,说明稀土离子与水杨酸酯之间环状配位化合物的形成在亚硝基化反应中起着重要作用。
Five kinds of organic-inorganic hybrid functional materials were prepared from isocyanate silane and aromatic amine compounds with benzene ring or amino amyl alcohol compound without benzene ring. 本论文利用异氰酸硅烷和含有苯环结构的芳香胺类化合物以及不含苯环结构的氨基戊醇化合物合成了五种有机-无机杂化功能材料。
With pymetrozine as lead compounds, lead aryl-isoxazole ring substituted the pyridine ring in pymetrozine, designed and synthesized a new compound. 以吡蚜酮为先导化合物,引芳基异恶唑环替代吡蚜酮的吡啶环,设计并合成了新化合物。