These vertical bars indicate my uncertainty in measurements of thickness and the horizontal scale, which is a logarithmic scale...
厚度的不确定度，由这些竖条表示，而水平刻度，则用对数刻度。
The structural deformation is the principal geological factor that affects the thickness variation of coal seam on a mine field scale.
构造作用是控制井田范围内煤层厚度变化的主要地质因素。
The heat transferring drum pipe, its heat insulativity and its heat-insulating Layer's thickness have not the distance scale.
对于圆筒输热管，其热绝缘性能与绝热层厚度之间的关系，远非象平壁那样呈线性关系。
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