这个突破在于它们的表面可以导电。
The breakthrough was doing that on a surface that would conduct electricity.
很多塑料具有高的表面电阻和低的导电性能。
Many plastics have high surface resistance and low electrical conductivity.
对各种导电材料可随意形状进行切割，可得到优良的切口和平整的表面；
Can cut conductive material in wantonly shape, get good kerf and smooth edge;
表面处理精度高，具有较好的导电性能。
表面处理精度高，具有较好的导电性能。
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