The flowing state in narrow annuli changes apparently quicker than that in circular tube.窄环隙流道内流态由层流向紊流转变明显提前.The velocity profile should be confirmed when non - Newtonian fluid flowing in duct and annuli is researched.在...
He promoted the dissemination of scientific ideas.他推动了科学观念的传播。The dissemination of error does people great harm.谬种流传,误人不浅.Disease and coincident dissemination of virus may occur to produce an epidemic.本病及同时传播着的病毒即可引起一次流行...