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Technical overview: 
(high efficiency inductive power distribution) a power supply system that provides power to the mobile body in a contactless form.

Technical features:
1. Clean: because it is contactless power supply, it will not produce dust like electron collector;
2. Safe: there is no spark and no exposed part of the power supply, so it is relatively safe (no power induction);
3. Maintenance free: since it is non-contact and no electronic friction, it does not need later maintenance.