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- 运用二次放行提高航班运输效益Improving Transport Efficiency with Second Dispatch
- 二two
- 二次adratic quadrate
- 二次曲线conic
- 二次开发secondary development
- 二次方程quadratic equation
- 二次创业start a new undertaking
- 二次回路secondary thermal system
- 以目标机场为初始目的地备降场的二次放行Analyses on Redispatch Permit Involving Emergency Airport
- 二次侧secondaly side
- 二次电池storage battery
- 尽管他一年中到南利兹选区访问仅一到二次，但那儿的选举区一直为他保留着。His constituency at South Leeds was being kept warm for him although he was able to visit once or twice a year.
- 二次方程式quadratic
- 二次曲面conicoid
- 二次能源secondary energy sources
- 美国家庭主妇可能一星期只购物一、二次。The American housewife probably goes shopping only once or twice a week.
- 二次谐波secondary harmonic
- 二次多项式quadratic polynomial
- 二次项quadratic term
- 二次灌浆back-grouting
