closedownn.倒闭；停业closedadj.关闭的；封闭的；停业的动词close的过去式和过去分词.closed block闭锁部件closed drive闭式传动closed orbit闭轨道closed pores封闭孔closed cargo列入表定运费的货物closed wagon棚车closed colony闭锁集群(在隔离的环境下培育抵抗力强的实验动物)closed design闭锁型设计closed planer龙门刨床closed forest密林； 郁闭森林