phase out逐渐停止； 逐步淘汰phasen.相位；方面；局面；阶段；时期vt.逐步执行phase-coefficient distortion[电] 相位系数失真phase-sequence voltage relay[电] 相序电压电驿phase-transition temperature相变温度phase difference changing rate相位差变化率phase sensitive keyed detector相敏键控检波器phase laser measuring distance相位激光测距phasefailure protective device断相保护设备phase stability of temperature温度相位稳定性phase comparison carrier relay相位比较式载波继电器phase contamination correction相位污染校正