“polyisobutylene”的概念、定义、翻译、参考文献-科学参考

单词	polyisobutylene
释义	polyisobutylene Encyclopedia 工学聚异丁烯释 polyisobutylene聚异丁烯由异丁烯经正离子聚合制得的聚合物。是一种典型的饱和线型聚合物。分子链主体不含双键，无长支链存在，其分子量可从数百至数百万，其中没有不对称碳原子，并且结构单元以首-尾有序连接。
随便看	direction of light direction of magnetization direction of main passenger flow direction of principal curvature direction of Quyi direction of recession direction of R^n direction of Rn direction of search direction of the selected titles direction of twist of yarn direction parameter direction ratio direction relation direction sign direction vector directive Directive 2001/29/EC of the European Parliament and of the Council of 22 May 2001 on the Harmonization of Certain Aspects of Copyright and Related Rights in the Information Society directive gain directive indoctrinate Directive on Privacy and Electronic Communications Directive on the Legal Protection of Databases Directive on the Protection of Individuals with Regard to the Processing of Personal Data and on the Free Movement of Such Data directive probability method Directives on the Promotion of Putonghua of the State Council

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