fled动词flee的过去式和过去分词FLn.焰(易燃的；闪光；淹没；冲洗；尺朗伯；满负载)Flechsig's treatment概率的有限测度Flechsig's cuticulum被约束较容易假定flocculent structure絮状结构,毛絮构造flabellate dichotomy扇形二歧分枝式flocculation process絮凝法Flos Daphnis Genkwae芫花Flaeagnus angustifoha沙枣Florescent regulation花期调控floriated nanocrystal花形纳米晶Flavonoids metabolism类黄酮代谢