phase II第二阶段phasen.相位；方面；局面；阶段；时期vt.逐步执行phase-array scanning相控阵扫描Phase transition layer相变边界层phase field simulation相场模拟phase modulated signal掂信号phase of sensitization感应阶段phase velocity of wave波相速度phase plane divisional相平面分区phase-to phase fault相间故障phase changing network相位变换网络phase difference model相差模型