asymmetricadj.不对称的asymmetricroute开环路由asymmetric atom不对称原子asymmetric VLAN非对称VLANasymmetric flow不对称水流asymmetric gear非对称齿轮asymmetric tail不对称拖尾特性asymmetric star非对称星型asymmetric fold不对称褶皱asymmetric dien不对称二亚乙基三胺asymmetric hull线型不对称船壳