we should not overlook the increasing impermeable pavements and buildings which narrowing the stormwater infiltration area causing increasing stormwater runoff.
硬化路面增多和建筑物面积增加,导致雨水下渗面积缩小,引起雨水径流加大,是不容忽视的重要原因。
conclusion the positive rate of fcc is concerned with tumor infiltration depth, infiltration area of gastric serosa and type of the histopathology.