http://www.aqtc.edu.cn/jxwz/wuhua/huanan/web-lwm/conception/conceptual%20dependency/jiaoshu.htm上面介绍得很详细!!
http://www.aqtc.edu.cn/jxwz/wuhua/huanan/web-lwm/conception/conceptual%20dependency/jiaoshu.htmhttp://www.yxtq.com/cp4.htm