Over current protection device: when the sample breakdown in the 0.1s cut off the power.
过电流保护装置：试样击穿时在0.1S内切断电源。
Power off protection for over temperature and ozone leakage protection;
具有超温断电保护，防臭氧泄露保护装置，使用无忧；
Power off protection for over temperature and ozone leakage protection;
具有超温断电保护，防臭氧泄露保护装置，使用无忧；
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