闭复合形closedcycle system: 密闭循环系统closedcommunity: 闭锁植物群落closeddeliverydrill: 闭式输种条播机 窄行条播机closedclass wordd: 封闭词closeddistributio ystem: 封闭式配送系统下载手机词典可随时随地查词查翻译