The occurrence of the disease is apparently related to standards of hygiene. 这种病的发生率显然与卫生状况相关。
Occurrence bump of left costal region, mix have aching feeling, what disease can you be? 左肋出现肿块，拌有疼痛感，会是什么病呢
Variety and moisture of poplar are main factors affected occurrence and expansion of the disease. 杨树品种和水分状况是影响病害发生流行的关键因子。
Objective To analyze the characteristics and occurrence of silent mitral stenosis in rheumatic heart disease. 目的分析风湿性心脏病哑型二尖瓣狭窄的发生及特点。
Study on the Relationship Between Lenticel Tissue Structure and Density and the Occurrence of Apple Rough Bark Disease 皮孔组织结构及密度与苹果枝干粗皮病发生的关系
The three dirty asthenia of the liver spleen kidneys are falsely, the collateral vein stagnation is basic disease machine of the chronic waist muscle lassitude occurrence. 肝脾肾三脏亏虚，络脉痹阻是慢性腰肌劳损发生的基本病机。