"Facebook wants to be at the center of most personal communication," Ray said. "it's fine with leaving the boring stuff to Gmail, Yahoo or Hotmail."
雷说:“脸普网希望成为最个人的通讯中心将无聊的东西留给Gmail、雅虎或Hotmail很好。”
The article studies a virtual fine boring system and its cutting data and presents a method to calculate the coefficient of cutting force when boring super-hard steel.
研究了实际的精密镗削系统及其切削数据,用计算方法探讨了用于计算超硬钢镗削切削力的系数。
The design portfolio of fine boring machine , not only to ensure accuracy, but also can improve the processing efficiency.
本次设计的粗镗组合机床,不仅可以保证加工精度,还可以提高加工效率。
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