铬

The result showed that some of properties of the leather made by this new technique are better than the ones made by normal process. The new technique without pickling not only leave pickling and basifying out of consideration, but also reduce chrome and clears up the pollution of salt brought from pickling to the environment.

结果表明，与常规浸酸铬鞣法相比，采用C-2000铬鞣剂及相应工艺鞣制的蓝湿革与成革的某些性能得到了提高，可以省去浸酸工序，简化工艺操作，减少酸和盐的污染，降低生产成本。

It probes into factors affecting decarbonizing inside and outside 6MVA submerged electric furnace in the whole smelting SiCr process,sums up rational process standard to ensure quality of silicochromium product and to guide the practice.

对6MVA矿热炉在生产硅铬合金冶炼操作全过程中影响炉内脱碳和炉外脱碳等因素进行了探讨，总结出确保硅铬合金产品质量的比较合理的工艺规范，以此来指导实践。

The result shows that the hydrogen storage properties increase remarkably after pure magnesium ball-milled with 10% TiFe(subscript 1-x)Cr (x=0, 0.3). Moreover, the chromium content also influences the hydrogen storage characteristics. Furthermore, the ball-milled composite of Mg+10%TiFe0.7Cr0.3 has the best hydrogen storage properties with hydrogenation capacity of 7.14% and dehydrogenation capacity of 6.91% at 613 K. In addition, the lower temperature of 493-573 K, the Cr-contained composite exhibits the best dehydrogenating kinetics.

研究结果表明：在纯Mg中添加质量分数为10%的TiFe(下标 1-x)Cr(x=0， 0.3)进行复合球磨，可以明显提高其吸放氢性能；在相同温度条件下，x=0.3的含铬复相合金具有最佳的吸放氢性能，其中在613 K下的吸氢容量为7.14%，放氢容量为6.91%；在493~573 K的较低温度下，含铬复相合金表现出更好的放氢动力学性能。

Cobalt chrome the metal alloy roast a porcelain hat:The price is opposite not high, the hat strength in the cobalt chrome Gao, is feater than to grow a bridge creation, the living creature compatibility is better, in many Europe nations and Japan, is the feat choice that the base metals roasts a porcelain hat, but the accuracy isn't the best.

钴铬合金烤瓷冠：价格相对不高，钴铬内冠强度高，适宜於长桥制作，生物相容性较好，在许多欧洲国家和日本，是贱金属烤瓷冠的适宜选择，但是精度不是最好的。

The hardness of HSS roll was over 66 HRC, the depth of hardened layer excesses 30 mm, the variation of hardness in the roll surface was smaller than 1.5 HRC, and the wear resistance of HSS roll was better than that of high chromium cast iron roll and high nickel chromium indefinite hilled cast iron roll, close to that of powder metallurgy hard alloy roll.

研制出的高速钢轧辊硬度超过66HRC，淬硬层深度超过30mm，辊面硬度差小于1.5HRC，耐磨性优于高铬铸铁和高镍铬无限冷硬铸铁轧辊，接近硬质合金轧辊。

More than 60%of the Cr can be leached into the leachate if propermethod was adopted.

4采用适当的方法，铬渣中的六价铬的淋出率可达到60％以上。

The experimental results denoted that the finer pearlite along the austenite boundaries in the as-cast Cr30Ni20NRE steel disappeared first under long-term and high-temperature service condition, and that an umber of Cr- richened carbides were formed due to unila-teral carburizing at long-term and high- temperature, consequently causing Ni to concentrate, bulging and calalyzing decomposition of the carburizing gas.

试验结果表明，长期在高温条件下服役，铸态Cr30Ni20NRE耐热钢中沿奥氏体晶界的珠光首先融入奥氏体，长期高温单边渗碳形成大量富铬碳化物，促使镍富集并起泡形成瘤状物，催化含碳气体的分解；表层瘤状物使辐射管表层疏松，表面积扩张，加快了碳向基体的渗入，提供了碳化物持续长大的条件，并引起沿碳化物周边开裂和奥氏体基体严重萎缩；合金元素的重新分布造成主合金元素铬和镍产生两极分化，镍和硅的富集促使石墨化，与侵入的氧形成内部氧化空洞和膨胀疏松，最终导致构件穿孔失效。

Transportation and storage.2 Oiling Oiling is to prevent white rusts formed on product surfaces during transportation and storage.

铬酸钝化处理铬酸钝化处理是为了防止产品在运输和贮存期间产生白锈而进行的化学处理。

A novel determination method of trace chromium in waste water by dual-wavelength spectrophotometry was established based on the fact that chromium can react with alizarin blue S to form red complex in H2SO4 medium.

在H2SO4介质中，铬与茜素蓝S形成红色产物，据此建立了双波长分光光度法测定废水中痕量铬的新方法。

This text through to various treatment include chromium, last cyanogens and alkali waste water craft comparison of the method sour, treatment craft of choosing economy to be effective separately; Adopt alkaline chlorine France punish, include cyanogens waste water, chemistry reduce, take place, deal with, include chromium waste water, in handle course among to waste water sour alkaline go on regulate, design one small-scale sewage treatment plant, demand to reach second in world and handle the standard.

本文通过对各种处理含铬、含氰及酸碱废水工艺方法的比较，分别选择经济有效的处理工艺；采用碱性氯化法处理含氰废水，化学还原发处理含铬废水，在处理过程中对废水的酸碱性进行调节，并设计一座小型的污水处理厂，要求达到国际二级处理标准。

This one mode pays close attention to network credence foundation of the businessman very much.

这一模式非常关注商人的网络信用基础。

Cell morphology of bacterial ghost of Pasteurella multocida was observed by scanning electron microscopy and inactivation ratio was estimated by CFU analysi.

扫描电镜观察多杀性巴氏杆菌细菌幽灵和菌落形成单位评价遗传灭活率。