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- The most obvious difference between petrol and diesel vapor is the presence of a greater abundance of long chain aliphatic CHs in the diesel vapor. 汽油蒸汽和柴油蒸汽最大的区别是柴油蒸汽中长链大分子的挥发性C-H化合物所占的比例远远高于汽油蒸汽。
- Commercial sodium lignosulfonate (raw SL) was purified with ionic-resin method, ultrafiltration, long chain aliphatic amine extraction and solvent extraction. 摘要以粗木质素磺酸钠为原料，采用树脂法、超滤法、长链胺法和溶剂萃取法对其进行了提纯。
- Investigating the property of hydrolysate of domestic lac resin, and based on the property differences between the salts of long chain aliphatic and terpene acids, aleuritic acid and shellolic acid were isolated. 研究了国产紫胶树脂水解物的性质,利用长链脂肪酸及环状萜烯酸某些盐类性质的差异,分离得到了紫胶桐酸和壳脑酸。
- Synthesis of Long Chain Aliphatic Carbonic Esters by Catalytic Alcoholysis of Urea 尿素催化醇解合成长碳链脂肪族碳酸二酯
- 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。
- Modified silicone with long chain acylate is synthesized by hydrosilation of PHMS and lauryl acrylate using chloroplatinic acid as the catalyst. 摘要以甲基含氢硅油和丙烯酸十二酯为原料，氯铂酸为催化剂，通过硅氢加成的方法直接合成了长链烷基酯改性硅油。
- 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。
- 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。
- 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。
- 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。
- They had longer chain gaps and needed a chain that was "stiffer" laterally. 他们长链的差距和需要一个链是“严厉的”横向。
- 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。
- There was a long lag in forwarding mail to us. 转寄给我们的邮件晚了很久才拿到。
