二维原始方程：two-dimensional original equation
二元模糊关系：Dual fuzzy relationship
二维黎曼问题：Two-dimensional Riemann problem
二维自治系统：the 2D dynamical systems
二体碰撞理论：Binary Encounter Theory
二次粒子溅射：EBIS
二元插值小波：2D interpolating wavelets
二个独立变元：Two independent variables
二层随机规划：Bi-level stochastic programming
二相凝固问题：Two phase solidification problem
二阶完整谱系：the second-order complete hierarchy
二分演化技术：Bisection evolution technology
二次剩余分布：distribution of quadratic residue
二氧化碳共聚：Carbon dioxide copolymerization
俄罗斯科学史：Russian history of science
二氧化硅温标：SiO_2 thermometer
二重马氏链场：second order markov chain field
二维同步编码：synchronous encoding
鄂尔多斯沙区：Erdos sandy areas
二向色滤光片：Dichroic fiter
峨眉地幔热柱：Emei mantle plume
二氯二甲基锡：dichloride-dimethyltin
二元三层结构：two-unit and three-horizon structure
二阶双曲问题：2nd order hyperbolic problems
二阶抛物问题：2nd order parabolic problem
二维周期系统：quadratic periodic differential equation
二次集成开发：Second Integrated Development
二氯二乙基锗：diethylgermanium dichlorid
二维小波分解：2D-DWT
儿童阅读推广：Promotion of children's reading
儿童阅读危机：Children's reading risk
二元关系约束：Dualistic relational constraint
儿童预防接种：children's immunization
二次冷却控制：secondary cooling control
二次曲线跟踪：Conic tracking
二次部署算法：Second-deployment algorithm
二维随动平台：2D following carrying platform
二硼化镁薄膜：magnesium diboride thin film
二次光学设计：Secondary optical design
二值图像形心：Centroid to binary image
二维相关编码：Two-dimensional Correlation Coding
二级交换结构：2-stage switching fabric
二氧化硅波导：SiO_2 waveguide
二部图谱划分：Bipartite spectral graph partitioning
二维矩阵编码：2-dimensional Coding
二维电场分布：2-D distribution of electrical field
二维位置测量：2-D position measurement
二维网格互连：Column-SIMD
二次游程编码：second-run-level coding
二维搜索算法：two-dimensional search algorithm