The invention also relates to a method for preparing the natural diamond impregnated bit.
本发明还包括所述天然金刚石孕镶钻头制备方法。
Valued at 250 million dollars, the Hope diamond is the world's largest and most perfect natural diamond.
希望之钻价值两亿五千万美元，是世界上最大也最完美的天然钻石。
The commercial value of natural diamond is often influenced by some coloring ions and inclusions in diamond.
天然钻石常因含各种呈色离子及包裹体等而大大影响了其商业价值。
The GIA Laboratory issues the Diamond Dossier for loose, natural diamonds between 0.15 and 1.99 carats, in the D-Z color range.
GIA实验室为那些在D-Z的颜色范围中并且在0.15ct-1.99ct发行的钻石小证书是为那些零碎的自然生成的钻石颁发的。
Natural diamond with seed crystal is discovered for the first time in Hunan Province by the study of synchrotron radiation X-ray diffraction topography.
利用同步辐射X射线形貌学研究，首次发现湖南褐色天然金刚石中存在籽晶金刚石。
Diamond Die: Natural Diamond Die, Die polycrystalline, imports polycrystalline module, and to match production with the various models of Roberts powder.
钻石模具：天然金刚石模、聚晶模、进口聚晶模；并生产与之相匹配的各种型号拔丝粉。
The bit is usually a drag bit fitted with either PDC or natural diamond cutting structures, but the core bit is unusual in that it has a hole in its center.
钻头通常属于刮刀型，装备有PDC或者天然金刚石切削齿，但取芯钻头的特别之处在于钻头中心有一孔。
The main products are Diamond Needle Files, Flat Files, Mounted Points, Wheels, Cutting Blades, Saw Blades, Mental Pen, Natural Diamond Wheel Blade, Diamond Grinding Paste etc.
主要产品有金刚石什锦锉，大扳锉，磨针，磨头，砂轮，切割片，锯片，金属笔，天然金刚石砂轮刀，研磨膏等。
The view point of oxidation (composing) and reduction (decomposing) can not only explain the creation of natural diamond but also diamond conversion mechanisms such static synthesis CVD method etc.
氧化(化合)—还原(分解)的论点，不仅解释天然金刚石的生成，也可解释静压合成、气相法等多种方法中金刚石的转化机理。
Natural-diamond merchants claim they aren't worried, but DE Beers has made a device that can distinguish between the natural stones and the synthetics and is distributing it to jewelers.
天然钻石商人声称他们并不担心，但是德·比尔斯制造了一种可以区分天然钻石和人造钻石的设备，已经分发给珠宝商。
It was sculpted with diamond cuts and left partially rough to expose the natural beauty of the crystal.
设计师以金刚钻打造出水晶浴缸，同时让水晶石的一部分处于未加工状态，保留水晶的自然美。
This paper discusses the performance and application of natural abrasive such as diamond, corundum, garnet, quartz, flint, pumice, diatomite, hematite and perlite.
本文介绍了天然金刚石、天然刚玉、石榴石、石英、燧石、浮岩、硅藻土、赤铁矿、珍珠岩等天然磨料的性能特点和其应用。
According to the Jade different natural colors, clever tricks to mix into beautiful diamond logo, simple act of moving natural, cool off a summer thermal!
根据岫玉天然颜色的不同，巧妙地搭配成花样漂亮的菱形图案，简洁大方，明快自然，清清凉凉过一夏！
Liaoning has the most iron, magnesite, diamond, and boron deposits among all province-level subdivisions of China. Liaoning is also an important source of petroleum and natural gas.
辽宁省的铁、菱镁石、金刚石、硼储量位列中国各大省市之首，它同时也是天然气和石油的重要产地之一。
Only three red diamondsweigh more than 5 carats, including the Kazanjian Red Diamond, which went on display at the American Museum of Natural History in 2010.
世界上只有三颗红钻超过5克拉，其中有一颗名为“卡赞金红钻”，2010年曾在美国自然历史博物馆展出。
Only three red diamondsweigh more than 5 carats, including the Kazanjian Red Diamond, which went on display at the American Museum of Natural History in 2010.
世界上只有三颗红钻超过5克拉，其中有一颗名为“卡赞金红钻”，2010年曾在美国自然历史博物馆展出。
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