金刚石

The ultra-precision cutting is of the interaction between knifepoint geometry of the tool and work-piece.

指出超精密切削实际上是刀具刀尖部分与工件的相互作用，分析了金刚石刀具刀尖几何形状和切削刃的锋利度对超精密切削加工质量的影响。

Mainly described the relation between diamond cutter on the knifepoint radius, arc cutting edge blunt round radius, feed rate and surface roughness.

对金刚石刀具的刀尖圆弧半径、圆弧切削刃钝圆半径、进给量与表面粗糙度之间的关系进行描述。

Diamond said:"I can lacerate anything!"

金刚石说："我什么都能割破！"

She needs Liana's and Alexa's help to free her from the mirror and to save the Diamond Castle.

她需要藤本植物的和Alexa的帮助从镜子释放她和保存金刚石城堡。

It can not only provide a window for research on continental lithosphere, but also prove to be of great significance to the exploration of diamond in this area.

它提供了一个研究大陆岩石圈的窗口，同时对本地区的金刚石找矿可能具有指导意义。

Examining The Diamond With A Jewelers Loupe : Diamond facets should be well defined, very few scratches (you can also see the quality of the stone this way).

研究金刚石阿珠宝商放大镜：钻石方面应当明确，很少有划痕（你也可以看到质量的石头这种方式）。

It is shown that maximum temperature value of the field's will rise while the Mach number increases. After the Mach number exceeds one, a clear bowshock is obtained in the simulation result, and the Mach angle decreases along with the Mach number. Those are consistent with theoretical results. While the Mach number is 3.5, even the radome inside is adiabatic, the maximum temperature is below 1000K. So the CVD diamond thick film radome can meet practical requirement of flight at 3.5 Mach number.

研究发现，随着马赫数的增加，温度场中最大温度值也随之增大；在马赫数大于1时，会产生明显的弓形激波，且激波的锥角随马赫数增加而减小，这与理论结果相一致；当马赫数为3.5时，即使在头罩内壁绝热条件下，温度场中最高温度值也在1000K以下，表明CVD金刚石厚膜可以满足Ma=3.5的实际飞行要求。

At present, there are more than 100 varieties of mineral resources, in which, such resources as Iron, Boron, Magnesite and Diamond etc.

目前，已发现的矿藏100多种，其中，铁、硼、菱镁石、金刚石等矿藏储量均居中国首位。

In this study, hydrogen-free DLC films were deposited in an unbalanced magnetron sputtering system.

从这点来讲，无氢类金刚石膜是一种极具开发潜力的材料。

The company's man-made diamond production and sales for the world.

公司的人造金刚石产量和销售量为世界第一。

Breath, muscle contraction of the buttocks; arch body, as far as possible to hold his head, right leg straight towards the ceiling (peg-leg knee in order to avoid muscle tension).

呼气，收缩臀部肌肉；拱起身体，尽量抬起头来，右腿伸直朝向天花板（膝微屈，以避免肌肉紧张）。

The cost of moving grain food products was unchanged from May, but year over year are up 8%.

粮食产品的运输费用与5月份相比没有变化，但却比去年同期高8％。