In the early 80's, HDW invented, patented and developed the Arc Reflection Technology, which continues to represent the state-of-the-art fault locating method for solid dielectric cables.
80年代早期，HDW研发的，获得专利权的弧反射研发技术仍然是故障检测的高级方案，用于固体介质的电缆。
In the early 80's, HDW invented, patented and developed the Arc Reflection Technology, which continues to represent the state-of-the-art fault locating method for solid dielectric cables.
80年代早期，HDW研发的，获得专利权的弧反射研发技术仍然是故障检测的高级方案，用于固体介质的电缆。
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