原石

It is significant for the computer - aided design to improve rough diamond yield.

三维重建的结果对利用计算机辅助设计提高钻石原石的成品率具有重要意义。

The computer aided design is used for improving the rough diamond yield during the design marking.

设计标线是钻石加工过程中的关键步骤，利用计算机辅助设计将有利于提高钻石原石的成品率。

From rough stones to marking, cutting, moulding and polishing... she was always interested in.

从原石开始，标记、切割、成形、抛磨……她一直兴味盎然。

The specimen below is the result of sawing and multiple treatments with HF acid and waxing.

上边石块是含有金的石英原石。下边的标本是经过酸和蜡处理过的标本。

Before faceting of the largest piece began, work was started on the 14 fragments that had been sawn from the rough stone.

在打磨最大一块石头之前，最终的职业是将14个碎片从原石上锯下来。