contact life
英
美
- 电触头寿命
双语例句
- The previous methods to improv the servce life of the plug were described, and it was pointed out to carry on the research on RE-aluminium alloying to increase the plug life.
对过去提高顶头寿命的工作作了简介，提出开展稀土铝合金化提高顶头使用寿命的研究。
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