金刚石

In recent years, cobalt-substitute prealloy powder for diamond tools were researched intensively.

近年，国内外开展了石工具代钻粉末的研。

The diamond shone with every hue under the sun.

石阳光下放出五颜六色的光芒。

The kimberlite is one of mother rock of diamond.

伯利岩是石的成矿母岩之一。

Mechanism of its synthesis is discussed based on microprocess of the nucleation of CVD diamond.

结合CVD石成核的微观过程，探讨了定向石膜的形成机理。

Diamond is chemically allied to coal.

石与煤学上是同类的。

Electroplating diamond-impregnated wheel is nondeformable, well anastomotic and pure. It's the best finish machining tool for marble or glass.

电镀型石磨轮具有磨削形状不变形，吻合标准，光洁度好等特点。是大理石、玻璃理想的深加工工具。

In situ Raman spectra of cycloheptane have been characterized under high pressure generated by diamond anvil cell(DAC) at room temperature.

利用石对顶砧(DAC)装置产生高,温下对环庚烷进行了高原位拉曼光谱研。

Based on machine kinematics and cutting theories, the simulating method for the generation of three-dimensional surfaces in face turning and flycutting of SPDT is studied.

基于机床运动学和切削理论对单点石加工时的工件端面切削及“飞切”加工进行了仿真建模。

Four alluvial deposits distributing along Yuanjiang river and the diamondiferous rocks that supply diamonds to these placer deposits have striking properties of varied sources and multi-phases.

沅水流域分布4个石砂矿床，供给石砂矿的含石岩体具多期多源特点。