三种可调式滚轮架：手动丝杆可调式、手动螺栓移位式和电动滑板移位式。
Three types of adjustable turning rolls: manual lead screw adjusting, manual bolt shifting and electric sliding plate shifting.
还有，上星期我的舌头被卷进电动打字机的滚轮，这叫我怎么还能相信上帝？
And how can I believe in God when just last week I got my tongue caught in the roller of an electric typewriter?
为了便于手持式电动剪刀的移动，在剪刀身的底部适当的位置安装适当数量的滚轮。
In order to move the hand-held electric shears conveniently, proper positions at the bottoms of the shear bodies are provided with a proper amount of rollers.
对送丝电动机、减速箱、送丝滚轮以及焊丝盘对送丝稳定性的影响进行了深入地分析，并给出了相应的参数；并对平面式、三滚轮行星式和对滚轮行星式送丝机构的特点作了仔细的分析。
By detailed analyzing the influence of the wire feeding electric motor, the deceleration box, the wire feeding roll and the wire reel on wire feeding stability, it points out the relevant parameters.
焊件移动或变位机构，如焊接滚轮架，头尾架翻转机，回转平台和变位机等，精密型的移动变位机构应配伺服电动机驱动。
3 mobile or welding positioner, such as welding roller frame, frame head and tail flip machine, rotary platform and positioner, mobile precision displacement mechanism should drive with servo motor.
焊件移动或变位机构，如焊接滚轮架，头尾架翻转机，回转平台和变位机等，精密型的移动变位机构应配伺服电动机驱动。
3 mobile or welding positioner, such as welding roller frame, frame head and tail flip machine, rotary platform and positioner, mobile precision displacement mechanism should drive with servo motor.
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