查询词典 diamond boron

He continued with a diamond finesse, cashed the ace of diamonds and ruffed a diamond, bringing down the king.

他接着进行了方块的飞牌，兑现A并将吃方块回手，掉下了K。

The cellular structure of porous metal-bonded diamond wheel can be modeled by tetrakaidecahedron and their elastic modulus can be calculated by the finite element method. Furthermore, diamond is acted as reinforced particle.

利用十四面体模型描述开孔金属结合剂金刚石砂轮胎体的胞体结构，并用有限元方法确定材料的弹性模量，进而将金刚石以增强颗粒的形式加入胎体材料中，形成开孔结构的金属结合剂金刚石砂轮节块的有限元模型。

The results show that the coverage area of tungsten film on diamond surface is above 90% and the steady tungstenic carbides WC and W2C are created by this technology. The tungsten film coated on diamond is realized.

结果表明，该方法可在金刚石表面镀覆上一层覆盖面达到90%以上的金属钨膜，且生成稳定的碳化物WC和W2C，得到由难熔金属钨包覆的金刚石。

Stainless steel and other ferrous metals are normally classified as not diamond turnable for the unacceptable tool wear caused by the thermal-chemical reaction between diamond and ferrous metals.

中文摘要不锈钢及其他的铁系金属被归类为不可钻石车削加工，因为在钻石与铁金属之间所产生的热化学反应将造成不可接受的磨耗。

Diamond bits require lower WOB,high rotary speed and small flow rate,useful for hole straightening and inclining prevention,and it can be used high-density drilling fluids.But diamond bits can′t effectively drill heterogeneous hard formations which contain chert,pyrite and silicastone.

金刚石钻头的钻压小、转速高、排量小，有利于纠斜防斜，可在高密度钻井液条件下使用，但它不能有效地钻进含燧石、黄铁矿和硅质的不均质坚硬地层。

HK.FXD is an exporting diamond jewelry Ltd Company which deputizes Israel diamond business.

香港富鑫达钻石珠宝与香港十二年品牌管理训练机构全年培训合作。

In order to improve the diamond tool performance and the bond strength between substrate and plating, and to obtain the machining efficiency and tool life, this article applies the rare earths to the manufacture of electroplated diamond tools. The effect of LaCl_3·7H_2O additive contents on bright nickel electrodeposits was studied in a typical nickel electroplating solution.

为了进一步提高金刚石工具性能及其与基体结合强度，进而使金刚石工具的加工效率和使用寿命达到最佳的状态，本文将稀土应用于电镀金刚石工具的制造，以亮镍镀液配方为基础，进行了添加稀土LaCl_3·7H_2O的试验研究。

The London diamond centre is at No 100, where diamonds are 'fingerprinted', and De Beers' diamond merchants are round the corner on Holborn Viaduct.

伦敦的钻石中心是在1000没有，钻石是'捺'而德比尔斯的钻石商们对Holborn特卖高架桥。

Through discussing the condition of surface coated diamond,the coating theory and the metalizing model,the techniques and development of coated diamond are summed up,and some newest achievement in this field are introduced,and the possibility of practical applicatio...

文章对金刚石表面镀覆条件、镀覆原理和形成的镀覆金属化模型进行了讨论，综述了金刚石表面镀覆金属层的技术及其发展，介绍了该领域的最新的研究成果，并分析了它们在实际生产中应用。

Diamond and mosaics: Look Mosaic technology, quality and size of the diamond.

钻石及镶嵌工艺：看镶嵌工艺，钻石的品质及大小。

He tendered his resignation to the Prime Minister.

他向首相递了辞呈。不适合

International economy and trade,Nanking 210044

国际经济与贸易，南京 210044