# stratum ##### 词义 - 英:/ˈstrɑːtəm/; 美:/ˈstreɪtəm/ - #词性/n 地层;层;阶层;岩层 ##### 例句 - Study and application of dominant stratum theory for control of strata movement - 岩层控制关键层理论的应用研究与实践 - Experimental study of the air distribution characteristics in room of stratum ventilation - 里格登透气性试验仪层式通风室内气流组织特性试验研究 - It was an enormous task that affected every stratum of society - 这是一项影响到社会各阶层的重大工作。 ##### 形态 - #形态/word_pl strata