RSVP(资源预留协议)
resource reservation proto
波长预留矩阵
backup reservation matrix
带宽预留机制
bandwidth reserved policy
后向预留协议
Backword Reservation Protocol BRP
4-carboxy-benz
环形开挖预留核心土
the method of ring-excavation with the core soil reserved
环形开挖预留核心土法
The method of circular excavation with core soil