一段科技资料的翻译
从科技文本中选了一段进行翻译，呵呵：换向后输出的油路在高压溢流阀的作用下形成8-10mpa的压力，推动油缸活塞与上刀前行，在通过固定圆底刀的孔时，把圆底刀孔中行进的线材切断，此时在电器控制柜中间时间继电器的作用下控制在0.2秒左右后，再次控制电磁换向阀换向，换向后输出的油路在低压溢流阀的作用下形成2.5-3.5mpa的压力推动油缸活塞与上刀后行从而完成单条钢筋的切断循环。
After change valve is reversed, a pressure of 8-10mpa is produced in the output oil-way under the function of high-pressure surplus valve, driving forward hydro-cylinder piston and upper knife, which passes through the orifice of the fixed core box bit and cut the wire. Then under the function of time relay in control cabinet, interval is changed to around 0.2 second. Solenoid directional change valve is controlled and reversed again. After reversion, a pressure of 2.5-3.5mpa is produced in the output oil-way under the function of low pressure overflow valve, pushing backward hydro-cylinder piston and upper knife and finish the cut-off circulation of reinforced steel bar.
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