短语词组短语bwr equation bwr 方程BWR MagneticTapeWriteBinary 磁带写入二进制BWR BandWidthRequested 带宽请求BWR assembly 沸水反堆组件small bwr 小型沸水堆Advanced BWR 改良型沸腾水型軽水炉Simplified BWR 単纯型沸腾軽水冷却水炉BWR BandWidthRatio 带宽比bwr r 沸水反应堆 返回 bwr