The maximum subsidence induced by mining bedding ore(such as coal seam) is an important parameter for estimating the degree of surface movement and deformation.
最大下沉值是度量层状矿体（如煤层）开采引起的地表移动变形程度的重要参量。
After drying-balanced, the material carries on the strict stress test, to ensure the stability of the lumber, to reduce deformation risks of the floor product from the source in maximum degree.
对烘干平衡后的材料进行严格的应力测试，确保木材的稳定性，最大程度从源头减少产品地板变形隐患。
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