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- Keywords Spongia;chemical composition;long chain compound structure;trihydroxyamide;natural product; 海绵;化学成份;长链化合物;三羟基酰胺;天然产物;
- long chain compound 长链化合物
- Buckets rise on a long chain from the well, and the water is tipped out into irrigation channels. 吊桶随着长长的链条升出井口，所盛的水被倾入灌溉渠内。
- Thought these pilot studies, the design of zao compound with surfactivity can work by combining the long chain alkyls and Acid Blue Black 10B together. 通过初步的研究表明，把长链烷基和酸性蓝黑10B结合起来，使酸性蓝黑10B具有表面活性这个设计是可行的。
- This fabulous event formed but a link in a long chain of marvels. 这件事看来尽管似乎荒诞无稽，但线索极多。
- An idealized model of a string is a single long chain of molecules. 绳子的理想模型是一长串单个分子的系列。
- After a long chain of contacts, they finally found out the truth. 经过多次联系,他们终于查明真相。
- Our vegetables, however, come to us through a long chain of command. 然而,我们的蔬菜是经过一个长长的控制环节才供应到我们手中。
- For the combination type of mechanical &electrical drilling rigs, i.e.JD &LD, the drawworks is driven by narrow V-belt and chain compound drive. 机械驱动与电驱动混合型钻机，即JD、LD型，后台采用窄V带并车或链条并车，前台采用交流变频电机驱动转盘。
- Poly(ethylene glycol) (PEG) is a hydrophilic polymer which has flexible long chain. 摘要聚乙二醇是一类亲水性长链聚合物。
- In naming a compound, the longest chain containing principal functional group is considered the parent. 在命名一个化合物时,选择最长的包含主要官能团的链作为母体
- Polypropylene is the second resin in the family of polyolefin composed of long chain saturated hydrocarbons. 聚丙烯是含有长链饱和烃的聚烯烃系列中第二个树脂。
- Buckets rise on a long chain from the well,and the water is tipped out into irrigation channels. 吊桶随着长长的链条升出井口，所盛的水被倾入灌溉渠内。
- These are chemicals with short molecules which can join together to form the long chain molecules of nylon. 己二胺和己二酸的短分子可以连接起来形成尼龙的长链分子。
- Octacosanol is a kind of long chain fatty alcohols and it is very hard to disperse in water phase. 二十八烷醇是一种高级饱和长链脂肪醇,水分散性差。
- The long chain alkyl methacrylate was synthesized by an im proved melt esterification method. 用改进的熔融酯化法制备了甲基丙烯酸十六酯。
- Synthesis and purification of long chain alkyl acrylate as intermediate of pour point depressant were introduced . 介绍了降凝剂中间体丙烯酸高碳醇酯的合成和产品分离提纯方法。
- Vitrinite is mostly composed of aromatic compounds,in addition to large amount of short aliphatic-side chain compounds. 与此相反,丝质体结构组成中芳香烃占绝对优势,而脂族结构含量则很少;
- Monoglycerides,sugar esters,polyglyceryl fatty esters and long chain fatty wax esters are important biosurfactants. 脂肪酸单甘油酯、脂肪酸糖酯、聚甘油脂肪酸酯和长链脂肪酸蜡酯是重要的生物表面活性剂。
- The synthesis of sphingosine and related long chain base have aroused much scientific interest in recent years. 鞘氨醇等的合成在有机合成界形成了一个经久不衰的热潮,应用各种新技术的合成方法不断出现。
