二分格点系统：bipartite lattice
二维射影变换：plane projective transformation
二维（2D）：two dimensional structure
二阶奇异方程：Second-order singular equation
二重抛物线解：Two-fold parabola solution
二层决策系统：two-level decision-making system
二层对策模型：two-level game model
二级优化模型：two degrees optimization model
二次谐波辐射：second harmonic generation
二次定位系统：DigiPOINT system
儿童生长发育：Children Growth
二元二次原型：primitive binary quadratic form
二人对策模型：two-person game model
二色边完全图：2 coloring Ramsey graph
二重NK变换：N K transformation
二级玻恩近似：Second Born approximation
二阶边连通度：second edge-connectivity
二维平面光栅：two-dimensional grating
二面投影原理：principle of two plane projection
二阶初值问题：second-order initial problem
二维相互作用：two-dimensional interaction
二次双级规划：quadratic bilevel programming
二维摩擦接触：two-dimensional frictional contact problem
二次判别模式：secondary judgement mode
二次学术文献：secondary academic document
二联油乳疫苗：Combined oil emulsion vaccine
二维弹性力学：two dimensional elasticity
二级多重分裂：two stage multi splitting
二级双四元数：second order duoquaternion
二阶偏导矩阵：second-order paritial derivative matrix
二重直积映射：two-fold direct product of mappings
二维LS变换：bivariate LS transform
二阶随机过程：the second order stochastic processes
二维齐次系统：two dimensional homogeneous system
二次无偏估计：quadratic unbiased estimator
二元π位相板：binary π hase plate
厄米特二次型：Hermitian quadratic form
二次谐波转换：second harmonic generation
二体碰撞近似：binary encounter approximation
鄂尔多斯沙地：Ordos sandland
二维分布坐标：Coordinates of two dimension distribution
二硫键还原剂：disulfide bond reducing agent
二分演化模式：bisection evolution pattern
二维复合介质：2 dimension multipul medium
二元相位光栅：Binary phase grating
二磷酸镧锌钠：NaZnLa(PO 4) 2
二波耦合过程：two wave coupling course
二重可迁作用：acting double-transitively
二级埋藏阶地：Buried second terrace
二次传递函数：quadratictransferfunction