centering-point curve 瞬时圆心点曲线
sphesical centering-point cusve 球面中心点曲线
six-point centering 六点定心
under point centering 测点下对中
For veneer peeling, the most crux technique of the peeling is how to fix the optimum centering point.
在单板旋切中，选择最佳的定心点是旋切优化的最关键技术。
Besides, centering and tack welding by laser beam should be avoided as centering point and tack-welding point can influence weld quality largely.
但焊缝质量受激光对中点和点焊点的影响很大，应尽量避免采用激光对中及点焊。
We position the brush over the canvas, centering the brush precisely over the point where that distant detail should appear in the image.
我们把画笔定位于画布上，画笔的中心严格的对应于远处的细节应该在图像上占据的那一点。
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