outer circumference meaning in English

外圆周长

This boundary is like the outer circumference of the escher print or the surface of the solid cylinder i considered earlier
这个边界就类似艾雪版画的外缘或者前面提过的圆柱体的表面。
By projecting this granular grinding medium 0 . 1mm 2 . 0mm off - center , it is possible to polish all kinds of surfaces including those of complex three - dimensionally - shaped work pieces to produce a mirror - smooth surface . whats more , this device can remove the fine burring left by fine processing and outer circumference edge finishing too
把粒状研磨0 . 1mm2mm通过斜投的方式，对复杂的三维立体形状也可进行镜面研磨，再通过精细加工去除多余部分和外周围边缘面的加工。