短语词组短语LINK TURN -UP RESULTS 链路开启测试结果Layer 2 Link Set -up Status 二层建链状态6 -link beating-up mechanism 六连杆打纬机构effective link -up 有效衔接Link -up Criterion 裂纹连通准则void link -up 空洞连通link -up performance 执行衔接Microsoft Link -up 连连看 返回 link-up