PREFACE DI, Study objects of Fluid mechanics □]2、 Tasks of fluid mechanics D3, Study approaches of fluid mechanics D 4 History of Fluid Mechanics D 5 Modern Teaching Research of Fluid Mechanics D6 Modern teaching research of fluid mechanics3 1、Study Objects of Fluid Mechanics 2、Tasks of Fluid Mechanics 3、Study Approaches of Fluid Mechanics 4、History of Fluid Mechanics 5、Modern Teaching Research of Fluid Mechanics 6、 Modern teaching research of fluid mechanics PREFACE