phase insulation meaning in Chinese

相间绝缘
相位绝缘

2 miniaturized vacuum arc quenching chamber which is with cucr25 contact material , cup shape and longitudinal magnetic field contact structure , intensive interrupting ability is used . vacuum arc quenching chamber is laid in a sealed insulating cylinder , which significantly improve the ability of enduring environment and phase - phase insulation character
2 、设计了采用cucr25触头材料、杯状纵磁场触头结构、开断能力很强的小型化真空灭弧室；真空灭弧室布置在封闭的绝缘筒内，提高了环境耐受能力，同时使相间绝缘性能显著提高。