This paper introduces the control system of Composite Materials Market, this system is based on Siemens PLC, Inverter, Intelligent electronic belt scale.

本文主要叙述了安钢综合原料场的自动控制系统，本系统基于西门子PLC、变频调速装置、智能电子皮带秤等设备。

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This article discussed the crop production efficiency on both sides of the forest belt in the composite system of agriculture and forestry.

文中探讨了农林复合系统中林带两侧附近作物的生产效能。

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