那间敞亮宜人的房间装有松木护墙板。The cheerful room was panelled in pine.这几堵墙装的是橡木护墙板。The walls are oak-panelled.风刮掉了护墙板,显露出壁骨材料.The wind had ripped away the clapboards and exposed the studding....
此反应属分子内反应,因而快速且干净利索.The reaction is intramolecular and hence fast and clean.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.The prepared random SBR has uniform inter ? and intramolecular composition distribution.构象的变化改变了分子内的螺旋方向,因此,旋光方向随之改变.S...