The reaction is intramolecular and hence fast and clean.此反应属分子内反应,因而快速且干净利索.The prepared random SBR has uniform inter ? and intramolecular composition distribution.该体系合成的丁苯共聚物具有均匀的分子内和分子间分布.Application of samarium diiodi...
他把她推向开着的炉门.He pushed her toward the open furnace door.论述了加热炉炉门使用中存在的缺陷及问题.This paper introduces the defect and using problem of heating furnace door.浇不足是焦炉炉门铸件常见铸造缺陷.Misrun is the common defects found in oven door castin...