The article mainly introduces the feature, drive and control of main machine platform of long threads Dacron. The selection principle of inverter capacity in winding head multi-drive is emphasized.
本文主要介绍了涤纶长丝纺丝设备中主要机台的特征，传动及其控制，重点介绍了卷绕头多电机传动中变频器容量的选择原则。
For improving further automatic gauge control accuracy of the whole strip, it is necessary to increase the main strip head percentage in order to launch into absolute AGC.
为进一步提高带坯全长厚度控制精度，需提高本体头部命中率，以便绝对AGC投入。
Terrestrial stress is a main control on hydrostatic head of reservoir, and its gradient powers oil, gas and water migration.
地应力是影响储层沉积水水头的主要因素，地应力梯度是油气水运移的主要驱动力。
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