usable floor area

基本解释

The Living Floor Space refers to the usable floor area after 2002.
2002年以后人均居住面积口径为使用面积。
It actually output image resolution normally take 30-45DPI, full-sized larger, hundreds of square metres of usable domestic floor area .
它本质输入的图像分辨率凡是只必给30——45DPI，画面本质尺寸比力不小的，有上一平米的面积。
Were it not for the high compressive strength of modern structural materials, the area of the columns would encroach on the usable floor area to the point where this might become nil.
如果不是因为现代化结构材料具有很高的抗压强度，柱子的横截面积就会大到占去全部可用地板的面积。