查询词典 metal working

Character: White or almost white crystalline powder, smell-less;Assay:≥98.5%;Solubility:Soluble in water, Slightly soluble in acetone and ethanol;IR:Complies with the working standard;Chemical identification:Red;Na Salt indentification:Complies with the standard;Relative substance:Complies with the working standard;pH:8.0-9.5;Loss on drying:≤0.5%; Heavy metal:≤ 20ppm

特征及特性：应为白色或类白色结晶性粉末；无臭，无味；含奥扎格雷钠(C13H11N2NaO2)≥98.5%；在水中溶解，在乙醇和丙酮中微溶；IR图谱与对照品一致；化学鉴别应显红色；溶液主斑点与对照品溶液主斑点的位置相同；钠盐鉴别符合规定；有关物质鉴别符合规定；pH：8.0～9.5；；干燥失重≤0.5%；重金属≤20ppm

Mainly supply imported and famous-brand special steel,including ASSAB、BOHLER、HITACHI、DAIDO、SINTO、SAARSTAHL、BUDERUS、ALLEGHENY LUDLUM 、BRUSH WELLMAN、ALCOA and domestic special mold steel, copper, aluminum, and non-metal materials from large scale special ste钢材价格走势图el enterprise. We have enough inventory of cold-working steel, heat-working steel, plastic mold steel, and powder steel, etc, a full series of top quality mold steel, to supply to large and medium enterprise,moreover,we offer 24 hours cutting and quick delivery service,Besides,we offer 6-sides mill processing for gloss and fine plates,heat treating, and other service, too.

主营进口特殊钢，销售品牌有瑞典ASSAB、奥地利BOHLER、日本HITACHI、DAIDO、SINTO、德国BUDERUS、美国ALLEGHENY LUDLUM、 BRUSH WELLMAN、ALCOA及国内大型特钢企业生产的特殊模具钢、铜、铝、及非金属用材，品种齐全，现货供应，备料充足，为各大中企业客户提供冷作钢、热作钢、塑模钢、粉末钢等全系列高品质模具钢种，而且提供24小时锯料及每天快捷发货服务；另提供六面铣的光、精板铣磨等精机加工，材料热处理等一条龙服务、一体化保证。

"Forge: Open furnace for heating metal ore and metal for working and forming, or a workshop containing forge hearth s and related equipment."

锻铁炉：一种用来加热金属矿石和金属以便加工和成形的敞口炉。

Kempers' study , the more layers the mesh screen type had, its resistance against gravity was higher, but its heat resistance and flow resistance were comparatively augmented. As mentioned in the preceding paragraph, it is extremely difficult for a single micro structure based on any of the three types to possess both low flow resistance and strong capillary force. Faced with this fact, the researchers have tried to mix the three micro structures in Table 2 into as many combinations as possible so that a composite micro structure with low flow resistance and great capillary force may be fabricated. After a thorough analysis, the groove combined with sintered metal or mesh screen has been found to be a better alternative. However, the groove combined with sintered metal will raise the flow resistance of the channel, and the aluminum substrate employed in this research cannot be sintered into a micro structure. As a result, the groove combined with mesh screen is finally chosen as the composite structure to enhance its capillary force and at the same time maintain its high permeability. In this way, the heat pipe will not fail due to the working angles.

Kempers 的研究当中提到，当网格结构越多层时，其对抗重力的能力也越强，但相对的其热阻以及流阻也越高，就如同前段所述，我们很难在单一结构当中找出一流阻低且毛细力之微结构；因此本研究便以表2中之三种微结构进行组合，找出一低流阻且毛细力强之复合式结构，经分析发现，沟槽搭配烧结以及沟槽搭配网格为较佳之组合方式，但由于烧结搭沟槽构造将会提高流道之流阻，且本研究使用铝做为基材，并无法使用烧结最为其微结构，故将采用网格搭配沟槽之复合式结构提高结构的毛细力，并维持沟槽结构的高渗透性，解决因角度造成热管失效的问题。

Therefore we have optimized the experimental system and the working status of instrument.2 The near-field SERS spectra and images for the [Ru_3]~(2+) molecule adsorbed on silver nanoparticle substrate were achieved. Based on the results, some specific phenomena for near-field SERS were found. By observing the near-field SERS spectra collected at different location at the nano-scale, the different spectral characteristics which are caused by the local environmental differences of molecules have been found. On the substrate, the highly SERS active sites are much more than SEF hot spots, and the distribution of them is not entirely consistent. This phenomenon could be explained by the influences of several factors including the different enhancement efficiencies existed for SERS and SEF, the quenching effects for fluorescence by the metal substrate and metal-coated tip, and the presence of different numbers of probing molecules in SERS and SEF.3 It is of interest that the near-field and far-field SER spectra demonstrate several distinctively different spectral features.

由于SNOM与SERS的结合在技术上将面临很多实际困难，例如近场激发信号极其微弱、纳米级微弱光谱的收集对实验精度和环境稳定性的苛刻要求等，因此我们对实验体系和仪器工作状态分别进行了优化。2获得了银纳米粒子SERS基底上[Ru_3]~(2+)分子在纳米尺度下的近场SERS光谱和图像，从中可以发现一些近场SERS效应特有的现象：通过观察不同位置得到的近场SERS光谱可以发现，在纳米尺度下，由于分子所处局域环境不同而体现出不同的光谱特征；此基底具有极高SERS活性的位点远多于表面增强荧光热点，且两者的分布并不完全一致。

Company covers an area of 50,000 square meters, plant construction area of 36,000 square meters, with all kinds of metal-cutting machine tools and sheet metal welding Cold Working more than 450 sets of equipment, the company employees 340 people, including six experts, senior technical staff 49 people, 20 senior management staff.

公司占地面积50000平方米，厂房建筑面积36000平方米，有各类金属切削机床及冷作钣焊设备450多台套，公司现有员工340人，其中专家6人，高级技术人员49人，高级管理人员20人。

The characteristic of this series leveler iS that it has adopted two national patent technologies:group driving plate levelling machine ZL200420001176.0 and axial decelerating motor leveler ZL200520007514.6.Each top roll is driven by a set of decelerating motor.and every two lower rolls are driven by a set of dynamic system,so that the line speed of each roll iS consistent with sheet metal speed of the contacting part,and it has solved the problems existing in traditional transmission system,such as friction between sheet metal and roll surface.and mechanical interference problem in the system And the working roll adopts spherical roller bearings which have little friction resistance.so this series leveler has such advantages as high levelIing quality,Iittle noise,low energy consumption and environmental protection.compared with traditional levelers.

该系列矫平机的特色之处在于：采用分组驱动板材矫正机(ZL200420001176.0)和一种轴装式减速电机矫平机(ZL200520007514.6)两种国家专利技术，每根上辊由一套减速电机驱动，每两根下辊由一套动力系统驱动，从而使各辊的线速度与所接触部位的板料速度相一致，消除了传统传动系统存在的板料与辊面之间的摩擦和传动系统内部的机械干涉问题，同时由于工作辊的轴承均采用轧机用调心辊子轴承，摩擦阻力小，因此，该系列矫平机与传统矫平机相比，矫平质量高、噪音小、能耗低、节能环保。

The basic working principle for the use of mobile thin metal wire to make electrodes, to carry out work on the pulse spark discharge in addition to metal corrosion, cut into type.

其基本工作原理是利用连续移动的细金属丝作电极，对工件进行脉冲火花放电蚀除金属、切割成型。

Brief introduce the technology status and development process of metal belt CVT. Analyze the structure, working principle and control technology of metal belt CVT which use double circle hydraulic system based on HONDA CVT prototype.

简要介绍了金属带式CVT技术的现状和发展过程，以HONDA CVT为原型，分析了双液压控制回路金属带式无级变速器的结构、工作原理和控制方式。

Our factory is specialized in working metal wire, metal net category manufactures the development, production and sales.

我厂专业致力于金属丝、金属网类制成品的研发、生产与销售。

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％。