The protocol can search multiple feasible tree branches, and select the optimal or near optimal branch for connecting the new receiver to the multicast tree if it exists.
该协议可搜索多条可行树枝，并能选择一条最优(或近优)树枝将新成员连接到多播树。
Then obtained the feature points such as endpoints and branch points of the skeleton, recorded their connecting relationship.
然后找出骨架中端点、分支点等特征点并记录它们的连接关系；
YHX series threading box the necessary connecting piece at the junction of the casing, cable connector and branch when laying the cable.
YHX系列穿线盒是电缆穿管敷设时在套管连接处、电缆接头处、分支处必须采用的连接件。
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