... surface leakage 表面漏电 surface lifetime 表面寿命 surface lubricity 表面润滑性 ...
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耐磨表面延长工具寿命 Wear-resistant surfaces extend tool life
航天器表面材料寿命 lifetime of spacecraft surface material
用锤头连续敲打金属表面的方法大大地延长了弹簧的使用寿命。
Great improvement has been brought about in the service life of springs by hot peening.
它提供了工具寿命和极为良好的表面光洁度。
It provides longer tool life and extremely good surface finish.
可是在塑性材料加工时，造成表面光洁度和刀具寿命低。
However, in case of ductile materials they cause poor surface finish and low tool life.
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