three R rs读、写、算三种技能threenum.三n.三；三个adj.三个的three-fold statically indeterminate三次超静定three dimensional movement literature三维动作文献three dimensional harmonic oscillator三维谐振子three-dimension-electrodes method三维电极法three-dimensional evaluation system三维评价体系Three-wheeled all-terrain vehicle三轮全地形运载工具Three Gorges-Guangdong HVDC projectthree thousand five hundred and forty(=3540) 三千五百四十three-dimensional effect in cascade叶栅三维影响three- point boundary value problem三点边值问题