prolonged alloy 中文意思是什麼
prolonged alloy
解釋
長時間退火-
Ductile iron is used instead of copper - alloy as material of big - diameter rings. developed with proper production processes, the product can completely meet the demands of its users with its life prolonged and the cost greatly decreased
探討了用球墨鑄鐵取代銅基合金作為大徑同步器齒環的材料.採用適當的生產工藝，生產出來的產品完全能夠滿足使用要求，並達到提高使用壽命，大幅度降低成本的目的
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