求翻译：设施的平面布局模型也称为二维选址模型，主要研究在一个给定区域内确定具有一定面积要求的各个设施的最佳位置问题。一个物流节点一般由若干个物流设施组成，当不同类别的货物运到节点后，根据物流作业流程要求，需要在其不同的设施中进行处理。不同性质及不同功能的节点，货物在其设施上处理的时间和处理的次序是不相同的，因此，布置各种设施在节点内的相对位置是否合理，非常重要。是什么意思？

Facilities layout model, also called two-dimensional location model, the main research area in a given area to determine the requirements of certain facilities in the best position of each issue. A logistics node is generally formed by a number of logistics facilities, when different categories of g

Facilities of the graphic layout model is also known as 2 -dimensional model, the main study site in a given region are determined within a certain area requirements in the best location of all facilities. A Logistics node general consists of a number of logistics facilities, when different types of

Facilities location model of layout models are also known as two-dimensional main research determines a certain area in a given region requires that all facilities of the best problems. A logistics node is composed of several logistics facilities in General, when different categories of goods to nod