This method is used for turning very long workpieces, when the length is larger than the whole stroke of the compound rest.
这种方法用于车削很长的工件，其长度大于复式刀架的整个行程。
2
Changing neither the length of overlapping gap nor the Angle of turning corner can assure the rise in shielding effectiveness, rather the specific changing trend is related to frequency range.
改变车身缝隙搭接部分的长度和拐角角度并不能保证提高其屏蔽效能，具体变化趋势与频率范围有关。
3
This paper presents parameter optimization of double-table turning structure, determination of trailer's draw bar length and hook positions of both the trailer and tractor.