two poleadj.两极的twonum.二；两个two-dimension vehicle crash二维碰撞two thousand and twenty seven(=2027) 二千零二十七Two-Speed Destroyer Sweeper双速驱逐扫雷舰two-step anodization method二次阳极氧化法two-hand overhead jump shot双手头上跳投two-link international call一次转接国际呼叫two-directional compression二向压制twocenter holographic storage双色全息存储Two- dimension NMR spectrum二维核磁共振谱two-step ejecting mechanism二级推出机构