裸钻就是经过切割加工，打磨但是没有镶嵌的单粒钻石。裸钻最重要的是切工。切工是裸钻4C中唯一一项人力可以做到的，直接影响裸钻的光芒，切工好才能显出光彩。
所以宝咏毫不犹豫向他推荐了价值百万的全美裸钻。
Therefore, Baoyong recommended the full-beauty naked diamond worth million dollars without hesitation.
由于全球范围内对裸钻的需求量的不断上涨，使得钻石的价值不会有任何下跌。
With the diamond demand worldwide on the upswing, the prices of the loose diamond are not showing any signs of going down.
位于新疆塔里木东河塘油田的DH 4- 8井是目前国内裸眼侧钻点最深、裸眼井段最长的定向开发井。
The DH4-8 well, located at Donghetang Oilfield in Tarim Basin, Xinjiang, is a directional production well with the deepest open hole sidetrack point and the longest open hole section.
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