After the assembly, work break between adjusting steel ring and copper pad's.
装配后调整钢环与铜垫间的工作间隙。
The effect of heating process on surface oxidation of copper-bearing steel was studied.
研究了加热工艺对含铜钢表面氧化的影响。
The strengthening mechanism of rare earth element in sintered copper molybdenum steel has been studied.
探讨了稀土在烧结铜钼钢中的作用机理。
Mr. Short, a copper and steel engraver by profession.
肖特先生是一名专业的铜器和钢铁雕刻师。
Mr. Short, a copper and steel engraver by profession.
肖特先生是一名专业的铜器和钢铁雕刻师。
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