The service life and safety of the electrodes are very important.
电极的寿命和安全很重要。
The utility model is characterized in high safety and reliability, low cost, long service life;
本实用新型具有安全可靠性高、成本低、使用寿命长的特点；
The utility model is characterized in high safety and reliability, low cost, long service life;
本实用新型具有安全可靠性高、成本低、使用寿命长的特点；
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