针对表面粗糙度和形位误差对圆柱体直径评定结果的影响，在进行圆柱体直径尺寸评定时，需要对表面粗糙度进行滤波处理。
As roughness and form & position errors have an effect on evaluation result of cylinder diameters, it is necessary that roughness is filtered for evaluating cylinder diameters size.
技术大楼是一个圆柱状结构，直径与E-ELT主镜直径39米的尺寸相同。
The technical building is a cylinder construction with a diameter the size of the 39-metre primary mirror of the E-ELT.
由于搪瓷设备的特殊性，解决方案只能是反应罐内增设圆柱形换热盘管，文章通过详细计算需要增加的圆柱形换热盘管的换热面积，确定了换热管直径、圆柱直径、高度等尺寸。
For particularity of the enamel equipment. Solution methods were: to add Disk tube in the pot. The article would detail calculate heat transfer area and height for the Disk tube.
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