Claisen 释义与例句 name 1. A surname from German, notably held by Rainer Ludwig Claisen. 相关短语 Claisen rearrangement [化] 克莱森重排作用 Claisen rearrangements Claisen condensation [机] 克莱森缩合 Claisen condensations Claisen flask [化] 克莱森瓶; 克莱森烧瓶 Claisen flasks Claisen adapter Claisen adapters