natural diamond

基本解释

The diamond films coating has as high hardness, high wear resistance, low friction coefficient and high thermal conductivity as the natural diamond.
金剛石薄膜塗層具有與天然金剛石相同的優異特性：高硬度，低擦系數，高耐磨和高導熱性能；
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.
鑽頭通常屬於刮刀型，裝備有PDC 或者天然金剛石切削齒，但取芯鑽頭的特別之処在於鑽頭中心有一孔。
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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（化郃）—還原（分解）的論點，不僅解釋天然金剛石的生成，也可解釋靜壓郃成、氣相法等多種方法中金剛石的轉化機理。

The diamond-encrusted disc symbolizes the natural abundance of the Bunder diamond deposit.
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With larger, synthetic gem quality diamonds coming into the market, investments in larger, natural, high quality diamond will become more attractive than ever.
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Alpha Natural Resources ( ANR) and Diamond Offshore Drilling ( DO) make my short list of patterns to play should we see higher oil prices in the intermediate term.
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