伏天 meaning in Chinese

hot summer days; dog days

These are the dog days ; watermelons are just in season .
现在是伏天，西瓜正当令。
Design guide on structures for photovoltaic array
光伏天线阵结构的设计指南
Effect of paroxetine associated with psychological intervention on depression in type 2 diabetic patients
伏天铺灸对慢性盆腔炎患者近期补体的影响
Effect of acupoint - injection of psn in hot summer days on immunologic function in patients of bronchial asthma
伏天穴位注射卡介苗多糖核酸注射液对支气管哮喘患者免疫功能的影响