二级创收：second-grade achieving income
二元分化：dual differentiation
二次签名：dual signature
轭式修辞：zeugma
二次填土：re-fill
二值逻辑：binary logic
二分变量：dichotomous variable
二灰材料：mixture of lime and fly-ash
颚板磨损：wear of jaw plate
二次载波：carrier wave two times
额定参数：Rated parameter
二次约束：quadratic constraint
二维定常：2-D imensional steady
二次涡流：secondary vortex flow
二步开采：two-step stoping
二次索引：secondary index
二阶摄动：second-order matrix perturbation
二次插头：secondary plug
恶劣海况：atrocious sea condition
二级督导：second level supervision
儿童乐园：Children Park
二阶滑流：second-order slip flow
二次合成：two-step method
二阶指标：second order index
二次界面：secondary building edge
额定流量：rated flow
额定扬程：rated head
二元反讽：duality
二阶滑移：second-order slip-flow
二次失稳：secondary instability
二值积累：Binary integration
二级屏障：secondary barrier
二次扫描：Secon d-scan
二级燃烧：Two-stage combustion
二级维修：TLM
二维插值：two-dimensional interpolation
二元溶液：binary liquid mixtures
俄苏文论：Russian-Soviet Literature Theory
二次压力：twice pressure
二类环境：secondary environment
二次防水：secondary waterproof
二级火箭：two-stage rocket
二元指标：dual index
二次共振：second-order resonance vibration
二次阻抗：secondary impedance
鄂东环网：circle network in the east of Hubei
二次元件：Secondary component
二维语法：2-dimensional syntactic structure
二维出图：2D drawing output
二指平动：2-finger-parallel