INVTRn.变换器(倒相器；转换开关)INVabbr.发明者(=Inventor)abbr.反相器(=Inverter)abbr.体外授精(=in vitro fertilization)invariablyadv.不变地；总是；一贯地invaginatev.收进鞘中；套进内部Inverclyden.英弗克莱德invinciblyadv.难战胜地；呈无敌的状态invarianee不变矩invar tape殷钢卷尺invitinglyadv.动人地involuerin内皮蛋白inveteracyn.根深蒂固；积习；慢性involutiveadj.回旋的(幂的；对合的)