本病无明显季节性,夏秋季略多。
Because selling of the home air conditioner trade has the obvious seasonal characteristic, its distributor management presents periodic return.由于家用空调行业销售具有明显季节性特点,其经销商管理呈现周期性循环的特点。
Results That there was an obvious seasonal characteristic of the incidence of pneumonia in children, which varied with the area and age of children individually.儿童肺炎发病率有明显的季节性规律,不同地区不同年龄组儿童肺炎的季节性规律不尽相同。