看图纸，图纸上清楚地表明了管件的三维尺寸。
We do it with the help of drawings. The drawing shows clearly the three dimensional position of a certain pipe.
此技术已成功应用于BG A芯片管脚的三维尺寸测量中。
This technique has been successfully applied in the three-dimensional measurement of BGA chip leads.
首次提出用一台面阵CCD摄像机测量运动高温钢坯的三维尺寸。
Three-dimensional measurement of the size of a moving hot steel slab using an area-array CCD camera is proposed.
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