ATP网球大师赛男单决赛在上海闵行区旗忠网球中心举行，在首盘比赛中，面对赛会三号种子选手费雷尔，卫冕冠军率先破掉对手的发球局，但随后由于失误过多又遭到对方反破发。
The defending champion broke the third-seeded Ferrer in the first game but a catalogue of errors then undermined his hard work at the Qi Zhong Tennis Center in suburban Minhang District.
以盘形凸轮为例，提出一种用计算机编程实现平面零件实物三维几何数据获取以及模型反求的方法。
This paper took discal cam as an example to bring forward a method of using computer program to get 3D geometric data of planar part and make its model in reverse.
本实用新型结构简单，易于加工，装卸极为方便、快捷，而且只能定向装配，不会反装刀盘。
The utility model has simple structure, easy processing and convenient and rapid assembly and disassembly, only can be directionally assembled, and cannot install the cutter head reversely.
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