quinacridone英kwɪn'ækrɪdəʊn美kwɪn'ækrɪdoʊnCOCA⁹²⁷¹⁷BNC¹⁷³⁹⁹⁵⁺² 基本例句 n.化喹吖二 酮;二羟基喹啉并吖啶¹⁰⁰ But for those quinacridone derivatives that are difficult to obtain single crystals, their structure could not be characterized by X-ray diffraction. 但是对于喹吖啶酮的一些衍生物,很难形成单晶,也就无法用 X射线衍射来表征其结构。 cnki