To achieve the four-phase stepper motor to start, stop control, reversing control.

实现对四相步进电机的启动，停止控制、正反转控制。

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Sensorless DC motor close-loop control module include reversing control, current loop regulating, the positive and negative rotational speed controls with speed ring etc.

无传感器闭环控制模块包括换向调节、电流环调节和速度环调节、正反转速控制等功能。

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It is made up of heat accumulation recovery system with high efficiency and reversing combustion system as well as control system.

它是由高效蓄热式回收系统，换向式燃烧系统和控制系统组成。

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This lack of direct control also makes reversing these trends problematic.

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Basically, the legislation is funding for the war in Iraq, funding for Katrina relief, and he's going to put this thing, basically, pulling away, keep reversing the deal that would allow Dubai ports to control the U.S. ports.

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Texas was a battleground for the tort reform movement in the 1990s, with pro-business conservatives eventually winning control of the Texas Supreme Court and reversing the state's image as a haven for plaintiff lawyers with exotic new theories of damage.

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