chromosome dyad二分染色体;双价染色体;染色体二分体
dyad relationships二元关系
asymmetric dyad对称对
syndiotactic dyad双间同立构二单元组
fullerene dyad碳六十
regression dyad退化二分子
dyad cell二分细胞
dyad analysis并矢分析
motherinfant dyad程发生在母婴两分体
N（名词） an operator that is the unspecified product of two vectors. It can operate on a vector to produce either a scalar or vector product 并向量 [maths]