基本解释n.1;2-二氨基環己烷四醋酸同根派生 DCTA相关词英汉例句Keywords Cyclohexadiamine;1;2-Cyclohexylenedinitrilotetraacetic acid(DCTA);Synthesis; 環己二胺;環己二胺四乙酸;郃成;DCTA更多例句