tropical region短语¹³¹⁶²⁰⁺³ 基本例句 热带地区 The data analysis also shows that in the tropical region, the phase of the QBO for ozone density changes many times with height. 资料分析还表明，赤道上空平流层中臭氧浓度 QBO的位相随高度变化多次。 cnki Mango weevils is a main pest attacking mango in the tropical region. 芒果象甲是危害芒果的重要害虫之一。 dictall