This paper presents a geometric model description methods of the cone gear for final driver of automobile driving axle system based on STEP, and establishes application protocol (ZCAP).
提出一种基于STEP标准的汽车后桥主传动器中圆锥齿轮类零件的几何模型描述，并制定出它的应用协议(ZCAP)。
Formal negotiations begin officially on June 1 in Bonn with three or more meetings to follow before the final summit in Copenhagen in December to forge a successor to the Kyoto protocol.
正式谈判将于6月1日在波恩正式启动，此后还会有三次或更多次会议，最后的峰会将于12月在哥本哈根举行，以缔结《京都议定书》(Kyoto protocol)的后续协定。
Formal negotiations begin officially on June 1 in Bonn with three or more meetings to follow before the final summit in Copenhagen in December to forge a successor to the Kyoto protocol.
正式谈判将于6月1日在波恩正式启动，此后还会有三次或更多次会议，最后的峰会将于12月在哥本哈根举行，以缔结《京都议定书》(Kyoto protocol)的后续协定。
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