invivon.在体内；在活的有机体中；自然条件下的INVabbr.发明者(=Inventor)abbr.反相器(=Inverter)abbr.体外授精(=in vitro fertilization)invariance of decision problem决策问题的不变性Invitro chemosensitivity assay体外药敏试验invincibility of rising forces新生事物不可战胜Involving four participants.涉及到四位参与者的inviting tender agent industry招标代理机构inviting friend to have dinner邀请朋友吃饭invar base measuring apparatus因网基线尺Invigorating blood cireulation活血化瘀invading Japanese army in China侵华日军invariance theorem of dimension不变量钢定理