The ampulla comprises about half of the oviductal length.壶腹约占输卵管全长的一半.Objective: Ampulla being obstructed can cause cholestasis and pancreatic juice regurgitation.目的: 胰胆管壶腹梗阻可引起胆汁淤积及胰液反流.Objective To discuss the diagnost...
磨坊主都往自己磨里注水.Every miller draws water to his own mill.注水驱油是油田中后期的重要采油手段.Water flooding is the main method to enhance oil recovery.油田注水系统是油田地面工程的五大系统之一.Water injection system is one of the five systems in oilfield....