它让您用循环构造和条件逻辑控制程序流，极大地增强了构建过程。
It greatly enhances the build process by letting you control program flow with looping constructs and conditional logic.
对此进行了改进：更换挡铁装置，优化运行逻辑控制程序，提高分配行车运行速度等。
The improvement was (conducted) as: changing the stoppers, optimizing operating logistic control program, increasing the traveling speed of the spreading conveyor, and etc.
对原驾驶室设计缺陷进行分析后，提出了加装防撞装置的方案，并对驾驶室PLC逻辑控制程序进行了改造。提高了卸船机驾驶室的安全性。
This paper puts forward the plan of installing the anti-collision device, and reform the PLC logic control program of cab, which enhances the safety of the cab of the ship unloader.
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