The result is a profile that is often characteristic of a particular type of reactor or centrifuge, and sometimes of an individual machine—and can also indicate how long ago the processing took place.
这种结果反应出了经常是一种特别类型的核反应堆和离心分离机的特性，有时是独特机器的特性，也能显示这种过程会发生多久。
This paper researches the key technology of High Speed PCB Machine based on the current advanced technology and the characteristic of PCB 's mechanical processing.
本文结合目前的先进技术和印刷电路板机械加工的特点对快速PC B机的关键技术进行了研究。
The connotation and characteristic of constraint in collaborative design of machine tool are analyzed. Conformation model of constraint network is demonstrated using EXPRESS-G.
分析了机床产品协同设计中约束的内涵和特点，并用EXPRESS - G图描绘了约束网络的结构模型。
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