在L5椎弓根最小轴的横断面宽度比例最大。
The ratio of the transverse plane width to the least axis of pedicle was largest at L5.
随煤柱尺寸增加，中性面区域的宽度逐渐增大，但其占煤柱宽度比例增速降低并逐渐趋于稳定。
As the size of coal pillar increases, the width of neutral plane area increases. However, the speeding-up of neutral plane area occupying the width of coal pillar decreases and becomes stable.
图像的高度和宽度的最大值被设置为 150 像素，但是保持高宽比例不变，因此图像没有变形。
The height and width are maxed out at 150 pixels, but the ratio of the height-to-width is preserved so the images are not distorted.
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