负式手压喷雾器喷药时从打气筒上部的压杆处冒（溅）水，一直是农民操作时的一块心病。这里向你介绍一种普通喷雾器的改造新招，不妨一试。 其做法是：先将喷雾器体内的塑料气筒管卸下取出，在距顶端螺口下部２ｃｍ处用剪刀或其它刀具开凿一个近４ｃｍ２的正方形或长方形孔穴， Negative hand-pressure sprayer spray from the pump at the top of the bar at the run (splashing) water, farmers have been operating a piece of heart disease. Here to introduce you to a new type of ordinary sprayer transformation, may wish to try. The practice is: first the sprayer body of plastic gas tube removed and removed from the top of the lower screw 2cm at a scissors or other cutting tool to create a nearly 4cm2 square or rectangular hole,