The system included target layer,function layer, criterion layer, factor layer. Among these layers, targetlayer means sustainable land use, function layer concludes bearingfunction, production function and ecological function.
该指标体系分四个层次，分别为目标层、功能层、准则层和因素层。
参考来源 - 宜章县土地可持续利用评价指标体系研究·2,447,543篇论文数据，部分数据来源于NoteExpress
This system includes 46 indexes in 4 layers: goal layer, criterion layer, field layer, and index layer.
该指标体系设立目标层、准则层、领域层和指标层4个层次的指标，共有46个指标。
There are no specific design demand and computer theory of paving layer in current bridge criterion, so there are common damages on the surface.
而现行的桥梁规范中对铺装并无具体的设计要求和计算理论，桥面铺装层纵横裂纹等破坏普遍存在。
The height of the characteristic temperature layer can be used to determine the altitude and thickness of "seeding temperature window," a seeding position criterion.
特征温度层高度可提供“播云温度窗区”的高度和厚度，也可为进一步确定播撒高度提供判据。
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