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Mainly used for:(1) one type of welding, diamond head of the welding, the welding carbide saw blades and diamond tools, abrasives, drill welding.

主要用于：焊类 1、金刚石刀头的焊接，硬质合金锯片的焊接及金刚石刀具、磨具、钻具的焊接。

Shanxi Golden Diamond Petroleum Drill Collar Tools Manufacturing Co., LTD Subordinates in Third geological engineering bureau of Shanxi geological prospecting institute.Is a whole people state-owned enterprise, professional manufacturer of oil drilling.

山西金钻石油机具制造有限公司隶属于山西省地质勘察局第三地质工程勘察院，是一家全民所有的国营企业，专业石油钻具制造商。

Our goal is to build China's largest suppliers of diamond tools platform.

我们的目标是打造中国最大的金刚石工具供应平台。

Both florescence and circular dichroism spectroscopy are the powerful tools for the investigation of the protein conformations , so they are widely used in the study of apoB-100 as well .

荧光光谱和圆二色（circular dichroism，CD）光谱是研究蛋白质构象的有力手段，因此在oxLDL结构的研究中也有广泛的应用。

Research your domain may seem like an obvious statement, but it is a fact that the day-to-day tools that scientists use dier vastly from one domain to the next.

研究你的领域可能听起来像是一个显而易见的表述，但无庸置疑的是，不同领域的科学家们日常使用的工具大不相同。

Differential equations and difference equations are powerful tools that describe the law of nature, but it is difficult to find their general solutions. Therefore , there has been an increasing interest in the study of the nature of solutions of differential equation and difference equation in theory.

微分方程及差分方程是用来描述自然现象变化规律的一种有力工具，由于寻求其通解十分困难，故从理论上探讨解的性态一直是近年来研究的热点问题。

The way how the cutting tool and the workpieces are set makes the difference in the various kinds of machine tools.

刀具工件放量方法不同，就分成了各种不同种类的机床。

The matrix composites for diamond tools were tested with such modern testing instruments and equipments as DTA-7 differential thermal analyzer, JCXA-733 electronic probe and scanning electron microscope, JEM 2000 FX Ⅱ transmission electron microscope, eXL energy spectrometer, and humidity test instrument. The analysis, comparison, and induction of the testing results prove the enhancing effects of the rare earth on the matrix composites: degeneration, micro-alloying, purification, and catalytic activation. The comprehensive function of these effects leads to the decrease in the porosity of the matrix composites and to the increase in such actual indexes as the flexural strength, hardness, and impact ductility of the whole rare earth Fe-based diamond tool materials.

由DTA-7型差热分析仪、JCXA-733型电子探针及扫描电镜、JEM2000FXⅡ型透射电镜、eXL能谱仪以及莱茨2AP高温显微镜材料润湿性测试仪等现代测试仪器设备对金刚石工具材料进行了测试实验，对测试实验的结果进行了分析、比较和归纳，证实了稀土对胎体材料具有变性、微合金化、纯化和催化活化等四大强化作用机理，这些机理的综合作用导致了胎体材料孔隙率的降低和整个稀土Fe基金刚石工具材料抗弯强度、硬度及冲击韧性等实际使用性能的上升。

The mathematical thought reflected in these researches were, actually, different from modern Game theory, but, still, it showed the possibility of dealing with Game problems with mathematic tools, and meanwhile, the thought of differential game theory in the early time was included in these researches, which in a way inspired the establishment of Game theory.

在这些研究中所包含的数学思想与现代博弈理论的思想基本上是不一样的，但电反应出了用数学工具处理博弈问题的可能性，同时也包含了早期微分博弈的思想，对以后的微分博弈理论的创立有一定的启发作用。

Based on theanalysis of topology structure of parallel mechanisms and using differential topology anddifferential manifolds as mathematical tools, we propose a new classification method. Thismethod classifies singularities of parallel mechanisms into two basic types, i.e. topologysingularity and parameterization singularity. This kind of classification has clear physical andmathematical meaning and fully reveals the characteristic of configuration space of parallelmechanisms.

采用微分拓扑和微分流形等现代数学工具，在对并联机构位形空间的拓扑结构进行分析的基础上，提出了一种新的奇异位形的分类方法，即把奇异位形分为拓扑奇异位形、参数化奇异位形两种类型，这种分类方法充分体现了并联机构位形空间的特点，具有十分明确的物理和数学意义。

Salt is good, but if the salt becomes flat and tasteless, with what do you season it?

14：33 盐本是好的，盐若失了味，可用什么叫它再咸呢？

He reiterated that the PLA is an army of the people under the leadership of the Communist Party of China.

他重申，人民解放军是在中国共产党领导下的人民军队。