A double belt conveyor system has been considered for use at several locations where it will be difficult to achieve truck access and little staging area exists.
已考虑将双皮带输送机系统用于难以使用卡车和存在小型集结待运区域的多个地点。
Under normal working conditions, the system allows for a double filtration area to enable higher work efficiency;
在正常的工作状态下，系统中具有双倍的过滤面积，提高工作效率；
In the model, the leaf area index (LAI), crop coefficients, and root penetration and distribution were simulated for the winter wheat and summer corn double cropping system.
模型对冬小麦—夏玉米轮作体系作物叶面积指数、作物系数、根系生长与分布进行了模拟。
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