通常，这样的宝石会推荐给钻石产业内少数几位经验老道的交易商，他们会花几周时间进行研究，判断原石经过切割可以得出多少颗钻石。
Normally such stones are offered to a handful of sophisticated dealers in the diamond industry, who study the diamond for weeks to determine how many cut stones the rough will yield.
切割碧玺晶体须要极大的耐心与许多的经验。
Cutting tourmalines requires a good deal of patience and plenty of experience too.
目的总结腕部切割伤治疗的经验和教训。
Objective To summarize the experience and lessons of the treatment of wrist cutting injury.
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