invex不变凸
INVabbr.发明者(=Inventor)abbr.反相器(=Inverter)abbr.体外授精(=in vitro fertilization)
inviting investment招商引资
invar baseline wire因瓦基线尺
involutory homology对合透射
inversive generator逆同余发生器
invaliant operation不变操作
involutory matrices幂么矩阵
involutional system对合方程组
Involutive Operator对合运算
involutive subspace对合子空间
involute tooth type渐开线齿型