更换下的冶金机械典型零件修复的经济性应进行分析。
The economy effect of repairment of the replaced typical metallurgical machinary parts should be analyzed.
设计了用轴类零件修复的频率和振幅均可调的振堆焊机构。
The vibrating mechanism of surfacing for repair welding of shaft is developed;
使化学镀在磨损零件修复、塑料模具、齿轮、齿轮轴、石油阀门球芯等方面得到良好的应用。
Therefore, the electroless plating is widely applied to many fields including reparation of worn workpieces, plastic die and mould, gear, gear-shafts, and ball cores of valves in petroleum, etc.
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