轧机伺服压下系统具有轧制力大的特点，其位移反馈机构的动刚度对系统的影响应予以考虑。
The servo screwdown system of a rolling mill has the characteristics of big rolling force, the influence of displacement feedback apparatus dynamic stiffness on system should be considered.
若在差压变送器的电磁反馈机构中串接一个电流平方器，就会使输出电流与被测流量呈线性关系，便于显示、记录、调节。
When connected in series a squarer to electromagnetism feedback system of differential pressure their relation will be linear, which is convenient to display, record and adjust.
他们通常来自非常著名的机构，事实上，他们在提供反馈方面做得比机器好得多。
Often they come from very famous institutions where, in fact, they do a much better job of providing feedback than a machine ever could.
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