This insulation provided security and eliminated the need to build an operational communications infrastructure capable of supporting communications sessions with multiple concurrent users.
这种隔离提供了安全性，也消除了建设业务通讯基础设施以满足多用户同时通讯的需求。
During the long operational time, the film insulation is exposed to the electrical, thermal and mechanical stresses, which will cause insulation degradation and lead to breakdown finally.
绝缘薄膜材料在长期的运行过程中，受到电、热、机械和环境因素的联合作用，其性能将因此逐渐变坏，并最终导致绝缘击穿。
Based on the insulation aging theories in recent years, the method combining statistic overvoltage parameters with operational records is proposed to estimate the residual life of insulation.
结合近年来国内外相关文献阐述发电机绝缘老化机理，并提出用统计过电压参数与运行记录相结合的方法，推定绝缘剩余寿命。
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