查询词典 tungsten

Main Product: resistors forming shear pin machine, shear pin capacitance molding machine, molding machine crystal, V-CUT substrate sub-board machine, Grinding, cutting foot machine, pneumatic molding machine, IC plastic plane, IC legs cut machine, IC grinding the word machine, automatic feeding plate, tungsten steel chip, PCB solder placed Units cars and exclusive framework, block tin, the ordinary solder Series Des Welding Products

主要产品：电阻成型切脚机、电容成型切脚机、晶体成型加工机、V-CUT基板分板机、磨刀机、切脚机、气动成型机、IC整型机、IC切脚机、IC磨字机、自动送料盘、钨钢刀片，PCB放置台车及焊锡专用框架、挡锡条、金手指防焊系列辅焊产品

However, if the distance between the tungstn tip and Al (100) surface is close enough, about 9 Bohr, the single Al atom under the tungsten tip can be extracted from the surface without any electrical field.

与半导体情形不同的是，在针尖与样品表面距离小于约9Bohr时，仅依靠针尖作用可以让Al原子自动脱离Al（100）表面。

Species of metallic deposits are quite complicated: Besides commonly-seen pyrite ,chalcopyrite and bornite, there exist varied copper-bismuth sulfosalt minerals(sandber}erite, Bi-tennantite, Bi-tetrahedrite, aikinite, wittichenite),tungsten-tin sulfidesand polymetallic sulfides.

金属矿物种类复杂，除常见的黄铁矿、黄铜矿、斑铜矿外，还有多种铜铋硫盐矿物（锌砷黝铜矿、铋砷黝铜矿、铋锑黝铜矿、针硫铋铅矿、硫铋铜矿）、钨锡硫化物（硫铁锡铜矿、硫钨锡铜矿）及多金属硫化物。

Description :The new Tungsten based IF material has up to twice the strength of the best impact resistant materials currently used in protective armor applications such as boron carbide and silicon carbide, and are over 5 times stronger than steel.

描述：基于 IF 材料的新钨比现有使用的保护装甲材料如碳化硼和金刚砂拥有两倍的最好冲撞抵抗效果，是钢强度的五倍以上。

Description :The new Tungsten based IF material has up to twice thestrength of the best impact resistant materials currently used inprotective armor applications such as boron carbide and siliconcarbide, and are over 5 times stronger than steel.

描述：基於IF 材料的新钨比现有使用的保护装甲材料如碳化硼和金刚砂拥有两倍的最好冲撞抵抗效果，是钢强度的五倍以上。

Most of the switch tubes used presently work in the gas spark region (the right branch of Paschen curve), and are made of graphite and mental such as tungsten, molybdenum, stainless steel and mercury.

目前实际应用的开关管多数工作在火花放电区域，使用的电极材料一般为钨、钼、不锈钢、水银、石墨等。

The thermal stability and structure of tungsten-tellurite glass were determined by means of differential scanning calorimeter and Raman spectra.

尤其是，在1 600nm波长附近，Er3+离子在碲化物玻璃中的受激发射截面是氟化物和石英玻璃的2倍[1，2]。

The distribution of tungsten carbide particles in matrix have been investigated.

对WCp在基体中的分布特点及影响因素进行了深入的研究。

Through the analysis of crystal structure and phase compositions, it was concluded that the precursor carburization and substrate temperature are the most important parameters to get nanostructure tungsten carbide thin films.

通过分析影响薄膜的晶体结构、化学组成的因素后，认为要得到具有纳米晶结构的碳化钨薄膜，主要应控制前驱体气体中的碳钨比以及基底温度。

The influence of double carburization upon the microstructure of WC powder is investigated by adopting of different tungsten oxides.

通过对不同氧化钨前驱氧化物的采用，研究两步碳化法对 WC粉末微观结构的影响，在国内首次探讨 WC粉末中生长孪晶的形成机制及其结构特点，阐述生长孪晶对硬质合金性能的影响。

According to the clear water experiment, aeration performance of the new equipment is good with high total oxygen transfer coefficient and oxygen utilization ratio.

曝气设备的动力效率在叶轮转速为120rpm～150rpm时取得最大值，此时氧利用率和充氧能力也具有较高值。

The environmental stability of that world - including its crushing pressures and icy darkness - means that some of its most famous inhabitants have survived for eons as evolutionary throwbacks, their bodies undergoing little change.

稳定的海底环境─包括能把人压扁的压力和冰冷的黑暗─意谓海底某些最知名的栖居生物已以演化返祖的样态活了万世，形体几无变化。