IP multicast technique realizes efficient data transmission from one point to multiple points in IP network, and remedies the defects of unicast and broadcast communication.
IP组播技术实现了IP网络中点到多点的高效数据传输， 它能弥补单播通信和广播通信的不足。
Pervaporation, as one of high efficient and economic membrane separation methods, is capable of separating azeotropic and near-boiling point mixtures.
渗透汽化分离是一种高效、节能的分离技术，特别适用于近沸及恒沸混合物的分离。
Trial ray method is an effective one for solving two point ray tracing. This method is efficient and simple.
试射法是求解两点射线追踪问题的一种方法，它的解法快速简便，易于判断和识别。
Trial ray method is an effective one for solving two point ray tracing. This method is efficient and simple.
试射法是求解两点射线追踪问题的一种方法，它的解法快速简便，易于判断和识别。
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