Beijing has dubbed the current period the diamond decade in its relationship with Asean, with the aim of boosting trade both ways from$ 444bn in 2013 to$ 1tn in 2020, according to recent state media reports. 根据最近的官方媒体报道,北京方面将本十年称为中国与东盟关系的钻石十年,目标是推动中国-东盟贸易从2013年的4440亿美元增加至2020年的1万亿美元。
Bob Wehle found the diamond at the Crater of Dia-monds State Park in Arkansas on Oct.14. 鲍勃·尔10月14日在阿肯色州的钻石坑州立公园发现了这颗钻石。
Since the first diamond was found at the crater of diamonds in1906, the park had several different owners until the state of Kansas made it a state park in1972. 自1906年钻石坑发现第一颗钻石起,这座公园几次换了物主,直到1972年阿肯色州将其立为州立公园。
Forming Mechanism of Diamond Working State and Technology to Control the Working State While High Efficient Sawing of Stones 高效锯切石材时金刚石形貌状态形成机理及控制技术研究
The effect of pressure transmitting medium on the high pressure experiments in diamond anvil cell ( dac)* experimental measurement of the equation of state ( eos) of pyrope 金刚石砧高压实验中压强传递介质对实验的影响&镁铝榴石状态方程的实验测定
Recent report showed that exposure of p-type ( B doped) homoepitaxial diamond layers to deuterium plasma can form n-type diamond with a shallow donor state. 最近报道显示,硼掺杂同质外延金刚石层暴露在氘离子束中能形成浅施主态的n型电导。
In this paper, the progress of diamond synthesis by laser induced solid state transformation was introduced, and the mechanism of each method was discussed. A novel method of diamond directly transforming from graphite in liquid media by laser induced reaction was put forward. 本文介绍了激光诱导固态转变合成金刚石的研究进展,讨论了金刚石各种合成方法的机理,并提出一种激光诱导液体介质中石墨颗粒固态转变合成金刚石的新方法。
A Monte-Carlo method with which the excluded valumes on the diamond lattices is first established on the ba-sis of the rotational isomeric state model with third-order interactions. 基于三级相互作用的旋转异构态模型,建立了在金刚石格点上计算排斥体积的蒙特卡洛方法。
The article has presented a method of partly dissolving the phenol formaldehyde resin into alkali, separating the diamond micropowder from the solution and analyzing the powder size, its distribution and the state of powder particle surface by EPMA. 本文用部分碱解法分离出磨具中的金刚石微粉磨料,并借助于电子探针对微粉粒度、粒度分布及表面状态进行了分析。
The graphite fragment can be formed not only in non equilibrium process but also in the graphite evaporation process, but the crystalline diamond grains can be formed only by the carbon atom in an excitation state during non equilibrium process. 金刚石晶粒只能由激发态碳原子在非平衡重组过程中产生,而石墨碎片既可以在碳原子重组过程中产生,也可以在蒸发石墨过程中产生。
Due to the introduction of the vacancy, one strong peak was observed at the right of the diamond peak in the state density and Raman spectra of diamond. 空位使金刚石的振动特性发生了变化,在态密度和拉曼谱中金刚石峰的右边出现一个较强峰。
Research Progress of Diamond Synthesis by Laser Induced Solid State Transformation 激光诱导固态转变合成金刚石研究进展
The control system of synthetic diamond works in the high temperature and pressure state. In the process of synthetic diamond, the accuracy of the pressure and power play a important role in diamond quality and yield. 人造金刚石压机工作在高温高压状态,在合成金刚石的过程中,压力和功率的控制精度对金刚石质量和产量起到至关重要的作用。
The strength of grinding wheel meets the application requirements, the gap structure of diamond grinding wheel was well distributed, the graphite of CBN grinding wheel was evenly distributed in the free state, brazing achieved between binder and abrasive. 砂轮强度满足使用要求,金刚石砂轮空隙结构分布均匀,CBN砂轮中的石墨呈游离态均匀分布。