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

结合CVD金刚微观过程,探讨了定向金刚

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The kimberlite is one of mother rock of diamond.

金伯利岩是金刚矿母岩之一。

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The diamond shone with every hue under the sun.

金刚在阳光下放出五颜六色光芒。

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

近年,国内外开展了金刚工具代粉末研究。

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Diamond is chemically allied to coal.

金刚与煤在化学上是同类

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

电镀型金刚磨轮具有磨削状不变,吻合标准,光洁度好等特点。是、玻璃深加工工具。

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

利用金刚对顶砧(DAC)装置产生高压,在室温下对环庚烷进行了高压原位拉曼光谱研究。

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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个金刚砂矿床,供给金刚砂矿金刚岩体具多期多源特点。

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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论对单点金刚加工时工件端面切削及“飞切”加工进行了仿真建模。

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In hyperdiamonds, that's still true, but it's a different, more wear-resistant form of diamond.

在超级金刚石的结构中,这同适用,但是不同的是,较普通金刚石更耐磨损。

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Diamonds are frequently used for industrial jobs like grinding and polishing, because they're so tough.

金刚石被广泛应用与工业作业中,例如研磨和抛光,因为金刚石

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西游记英文版(Journey to the West)

But his body was as hard as a diamond.

但他的身体就跟金刚石

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生活大爆炸 第8季

Oh, no, not at all. No, we, uh, found a place online that, uh, repurposes diamond drill bits.

不,一点都不贵。我们在网上找到一家店能将金刚石钻头改成钻石。

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Crash Course 综合篇

And also like graphite and diamond, the different forms that they take are all about bonding differences.

与石墨和金刚石,化学键的差异也会导致不同的网状结构。

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This material is made up of many tiny, interlocked diamond crystals rather than one single structure.

这种材料不是由单一结构构成,而是由许多极小的连接在一起的金刚石晶体组成。

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CNN 听力 2019年8月合集

The island is believed to be rich in resources like gold, diamonds, uranium, oil, lead and iron ore.

据悉,格陵含黄金、金刚石、铀、石油、铜和铁矿石等资源。

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Crash Course 综合篇

Like graphite and diamond, the two forms of pure carbon, silicons and it's oxides are network solids.

就像石墨和金刚石这两种碳单质,硅和它的氧化物也是网状结构的固体。

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英国学生科学读本

Have you ever seen a diamond? It is a very bright, hard kind of stone, and very dear.

小朋友,你见过钻石吗?钻石,也叫金刚石,是一种非光亮,非的石头,价钱还特别贵。

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SciShow - Chemistry

In hyperdiamonds, that’s still true, but it’s a different, more wear-resistant form of diamond.

在超级金刚石中,这仍然是正确的,但它是一种不同的、更耐磨的金刚石形式。

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Crash Course 综合篇

And here's another way that the diamond's network structure makes it totally different from graphite.

这是金刚石的网络结构使其与石墨完全不同的另一种方式。

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化学 Crash Course

But even though diamond is terrible at conducting electricity, both graphite and diamond are good conductors of heat.

但是, 尽管金刚石的导电性能很差,但石墨和金刚石都是良好的热导体。

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But we can use what we know about carbon to make a material even harder than diamonds.

但我们可以利用所掌握的有关碳的知识,来制造比金刚石的物质。

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Crash Course 综合篇

So when thermal energy increases in one region, it spreads quickly throughout the diamond or graphite.

因此,当一个区域的热能增加时, 它会迅速扩散到整个金刚石或石墨中。

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Space – Verge Science

Way down there, the pressure and heat is just right to crystallize carbon into diamond instead of graphite.

在那里, 压力和热量恰到好处,可以将碳结晶成金刚石而不是石墨。

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Aggregated diamond nanorods, or hyperdiamonds, if you wanna sound cool, these are the hardest, most dense, and least compressible material we know of.

聚合金刚石纳米棒,或超级金刚石,更酷的是,这些是我们所知的最、密度最高,几乎无法压缩的材料。

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经济学人-科技

Allotropes of an element can have very different properties from each other (graphite and diamond, for example, are both allotropes of carbon).

一种元素的同素异形体可能彼此具有非不同的性质(例如,石墨和金刚石都是碳的同素异形体)。

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精选英语短文

The solution was a lubricant that contains diamond-like nano flakes that would not only help prevent wear, but reverse it.

解决方案是一种含有类金刚石纳米薄片的润滑剂, 它不仅有助于防止磨损, 还能逆转磨损。

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Crash Course 综合篇

In diamond, the bonding electrons in each atom are arranged in SP3 orbitals.

金刚石中, 每个原子中的成键电子排列在 SP3 轨道中。

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Crash Course 综合篇

The reaction to change a diamond into graphite, for example, would be thermodynamically spontaneous.

例如,将金刚石变成石墨的反应在热力学上是自发的。

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