词汇	消极的态度
释义	消极的态度 negative attitude
随便看	prandtl glauert rule Prandtl Glauert rule Prandtl-Glauert rule Prandtl hypothesis Prandtl integro-differential equation prandtl lifting line theory Prandtl, Ludwig prandtl-meyer expansion prandtl meyer flow Prandtl-Meyer flow prandtl meyer wave Prandtl-Meyer wave prandtl mixing length prandtl mixing length hypothesis Prandtl mixing length theory Prandtl mixing-length theory prandtl number Prandtl relation Prandtl-Reuss relation Prandtl rs boundary-layer approximation prandtl's boundary layer equation prandtl's interference factor prandtl's momentum-transport theory prandtl torsion function prandtl tube