In the light of the characteristics of P2P group communication, we define two graph metrics, RH and RD, to quantify the matching degree between the overlay and the underlay network.
The basic control functions of RH vacuum installation for bloom CCM in PANGANG Iron & Steel Group Co. are presented, emphasizing the vacuum pump control system.
介绍攀钢方坯RH精炼装置真空系统基本控制功能，侧重介绍真空泵系统的功能和其相关系统控制。
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Rh blood-group system: system for classifying blood according to presence or absence of the Rh antigen (factor) in erythrocytes.