basic ion正离子,碱离子,阳离子basicadj.基本的；基础的；初级的；含硅少的n.基础；根本；[计]BASIC语言basic surveying and mapping emergency应急性基础测绘basic indexed sequential access method基本索引按序存取法,基本她顺序存取法basic value of international community人类社会基本价值Basic composite upper intake manifolds复合顶部进油口歧管basic movements for individual tactics单兵战术基础动作basic structure of unstrained crystals未形变晶体的基本结构Basic Psychological Operations Studies心理战基础研究basic partition anti-circular matrix分块反循环矩阵basic telecommunications access method基本远程通信访问法Basic Knowledge of Axonometric Drawing轴测图的基本知识