词汇	矢量加法
释义	矢量加法医vector addition
随便看	biologicalgroup biological group biological groups biological growth biological habit biological habitat biological habitation landscape biological habit of vespa bicolor Biological habits biological half biological halff life period biological halff-life period biological halflife biological half life biological immobilization biological immortality biological immune biological immune principle biological half-life biological half life period biological half-life period biological half synthesis biological half time biological half-time biological hazard