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隐形冠军
留下邮箱,下班了,晚上给你发
海上花的故事
加工要求 [网络] process requirements; [例句]采用高速精密磨削方法和工艺加工凸轮轴可以满足高速、高效、高精度的加工要求。Processing camshafts by the technique of high-speed-and-precision grinding can meet our satisfaction for high speed, efficiency and precision.
往昔岁月
It's hard to work out
四叶细辛
High processing difficulties
Bubble0104
It's difficult to machining.
徐珊珊11
processing requirements
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