Air is the medium of electrical insulation between electrically live parts and grounded (earthed) metal parts.
Air is the medium of electrical insulation between electrically live parts and grounded (earthed) metal parts.
空气是带电零件和接地金属零件之间的绝缘介质。
Air is the medium of electrical insulation between electrically live parts and grounded (earthed) metal parts.
空气是带电零件和接地金属零件之间的绝缘介质。