产生金属的

Meta ls of low electrical resistence will be different to spot weld, whereas those of high resistance,such as stainless will produce a spot weld readily.

所输送的焊条在焊点处熔化，低电阻的金属很难应用点焊，而高电阻的，比如说不锈钢，能够很容易地产生点焊。

This may be because that the metal ions in calf intestine AKP is more close to the surface of enzyme molecule than in Ulva pertusa kjellm , EDTA can exerted inhibitory effect on the AKP from calf intestine more easily and quickly.

这可能是由于小牛肠碱性磷酸酶活性位点的金属离子相对于孔石菇碱性磷酸酶的活性伍点来说突出在酶大分子的表面，EDTA容易与之发生络合作用，从而快速对小牛肠AKP产生抑制作用。

In order to deflect the electron beam about 180° or 270° to heat metal, magnetic field was calculated and the magnet iron was designed to generate the adequate uniform magnetic field.

为使电子枪形成的电子束偏转180°或270°来加热金属，又进行了线圈磁场的理论计算，并采用等B磁铁设计，产生满足要求的均匀磁场。

There exists isomorphous replacement in the rutile structure, and the most prominent feature is the average content of oxides, being 1.22%, 0.39%, 0.35% and 0.22% for V 2O 5, Fe 2O 3, ZnO and CuO respectively. They substitute Ti 4+ in octahedra. The valence of V is 5, and its polyhedron is trigonal bipyramid, which causes the lattice distortion, breaks the raw octahedron symmetry into square bipyramid, and produces the microstrains in the structure.

天然含钒金红石平均含V2O5可达1.22％，Fe2O30.39％，ZnO0.35％，CuO0.22％，这些金属离子可替代八面体中Ti^4 。V以5价形式存在，配位多面体呈三方双锥，其在晶格内部对Ti的替代导致晶格畸变，打破了配位多面体原有的八面体对称而呈四方双锥的几何形态，并产生结构微应力。

In general no porosity is observed in the seam when the length of claviform intermetallic compound is less than 10 μm. Moreover, the microstructure in the seam plays a key role in the diameter of the pore.

界面棒状的金属间化合物长度低于10 μm时一般不产生气孔，而气孔的直径与焊缝内部的微观组织有关。

It can be mixed with various greases. Under the action of high temperature short time and high pressure produced by the friction, nanometer ceramic power will have cementation and densify the worn metal su*****ce layer, and form a layer of cermet, thus, restore the worn parts to optimum fit clearance and lubrication status.

不含毒素、重金属和强化物，可与各类油脂混合，在摩擦产生的瞬间高温、高压力的作用下，纳米陶瓷粉体在磨损金属表层渗镀和致密，生成一层金属陶瓷，从而使磨损部件恢复到最佳的配合间隙和润滑状态。

And it can greatly reduce the noise, by reducing the vibration of the mechanical material, and also lessen the attrition rate , this innovation is increasing life span and security of a machiner.

可广泛用于减少高速运动物体与空气间的阻力，如：汽车，火箭，火车，飞机，涡轮机和内燃发动机的设计；并大大降低其产生的噪音，降低金属构件损耗率，增加使用寿命及安全性。

The crude PPG was purified with neutralization-absorption process and the experimental conditions of crystallization, decolor , dehydration and removement of metal irons were investigated respectively.

应用中和-吸附的工艺方法对聚醚进行精制，并且分别考察了结晶、脱色、脱水、脱金属离子等重要实验条件，讨论了使用不同的吸附剂，对聚醚精制效果产生的影响。

With the greater demand of sulfureted antimony slag for market, the slag was become more and more after the process of selecting and smelting mine, whereas, the most slag freely placed wasn't disposed and treated in some degree. Meanwhile, there were some sulphur and valuable metals in the slag.

随着市场对硫化锑矿石的需求量越来越大，选矿之后和冶炼后产生的矿渣也越来越多，大多数矿渣随处堆放未作处理和治理，另外矿渣中含有一定的硫磺和贵重金属资源。

Project Content and Scale: To adopt a mixed production transmission device of micro glass powder such as axle bush, the anti-abuse movement capacity of gears can be raised 2-3 times, especially in the condition of high-temperature without lubricant .About 70% of the world automobile gear is made in the way of metal powder metallurgy. However, utilizing method of pure metal powder metallurgy may cause a fatal weakness, that is, because sinter oxide membrane will arise among crystal, this may lower its intensity.

项目内容和规模：采用微玻粉末混合生产的传动装置如轴瓦，齿轮其抗磨蚀能力提高2—3倍，特别在高温无润滑条件下优势更为明显，全世界70%的汽车齿轮是用金属粉末冶金为法制造的，但纯金属粉末冶金件有一个致命弱点，因颗粒间会产生烧结结氧化膜而降低强度。

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。