rdmbsBNC²³⁶²¹³⁺¹ 例句 The design of spatial data accessing engine is the key for object RDMBS to memory and query spatial data. 为使对象关系数据库更方便存储和查询空间数据，空间数据访问引擎的设计是关键。 dictall Years of RDMBS usage has made programmers view them as ubiquitous, when often they need not be. 多年使用 RDMBS已使得程序员将模式视为必不可少，但通常模式并非如此。 ibm