铬

we use magnetron sputtering to deposit Al-AlN particle film as SED's electron-emitter. The Cr-Cu-Cr electrode was prepared by electron beam vaporize deposition. The voltage used to electroform the cracks are periodic trigonal wave and the breadth of the voltage are increasing gradually.

文章中采用铝-氮化铝薄膜材料作为SED器件的电子发射层，采用磁控溅射的方法镀电子发射层，采用电子束蒸发的方法镀铬-铜-铬材料作为电极；电形成过程中采用电压幅值恒定、周期性重复的脉冲和电压幅值渐增的电压脉冲作为电极电压。

A typical representative of such a polymetal layer printing master blank contains a steel plate whereon a copper layer (7 to 10 μ thick) and a chromium layer (2 to 3 μ thick) with mat aspect are electrolytically deposited, which chromium layer in its turn is coated with the photosensitive coating suited for preparing the resist.

1991年参加过多金属层印刷主空白的典型代表，包含了钢板地上一铜层（7至10μ厚）和铬层（2至3μ厚垫方面）的电解沉积，反过来的铬层涂有准备的抵制适合光敏涂料。

We use in 316 steel pipes chromium content should after 16%-18% the steel joins elements and so on chromium, can change the steel the performance, like the example steel's molecular structure is evener, produces compact oxide compound protective film in the steel superficial change and so on, thus sharpens the stainless steel anti-corrosive ability greatly.

我们所使用的316钢管中铬的含量应该在16％-18％钢中加入铬等元素后，就能改变钢的性能，如例钢的分子结构更均匀，在钢的表面更易生成一层致密的氧化物保护膜等，从而大大提高耐腐蚀的能力。

Ferrochrome in the European Union has fallen by half since trading at a record $2.85 a pound in May, according to data compiled by Metal Bulletin.

据金属通报数据，自5月铁铬合金交易价格为2.85每磅以来，欧盟铁铬合金产量已经减少一半。

A new recovery technology of solid waste was made which is from furfuryl alcohol production by furfural hydrogenization. When the solid waste is placed in a vacuum drying box, and is under lower negative pressure and at 130℃, the organic materials in solid waste can be distilled and then returned to the refining workshop to produce qualified furfuraldehyde and furfuryl alcohol. The remainder is mixed with soda ash and roasted in a reverberating furnace. The sodium chromate can be obtained by leaching. Rough cupric oxide is dissolved in nitric acid and cupric nitrate is obtained. A new catalyst was prepared by the above sodium chromate and cupric nitrate and used in furfuryl alcohol production.

将糠醛液相加氢生产糠醇产生的废渣置于真空干燥箱中，在较低的负压状态下保持130℃的温度，蒸馏回收废渣中的有机物，返回糠醇精制车间获得合格的糠醇与糠醛产品；剩余的固体废弃物与纯碱混合，在反射炉中焙烧，浸取获得铬酸钠水溶液；最后剩下的粗氧化铜溶于硝酸得到硝酸铜溶液；将铬酸钠溶液、硝酸铜溶液按一定比例混合，加入氨水搅拌，分离出的沉淀经传统方法焙烧活化、造粒制得新催化剂，回用于糠醛液相加氢生产糠醇。

The body itself also includes a chrome Corvette grille, a 1953 Corvette-style dash, power door windows and locks, complete custom safety laminate window glasswork, a slew of chrome trim pieces, and a functional tailgate with power window opening.

对该机构本身还包含一个铬克尔维特格栅，一个1953年的Corvette式仪表板，门窗口和电源锁，完全自定义的安全层窗户玻璃，一系列铬装饰件，功能挡板电源窗口开放。

The main products are: all kinds of industrial furnace regenerator with cordierite, mullite, high alumina, corundum honeycomb, and various materials and specifications of the regenerator the ball, and with regenerator tile block; all kinds of industrial furnace series×, corundum brick, clay brick, lightweight insulation materials, heat insulation brick light weight, low-iron mullite brick, silica brick, magnesia brick, aluminum MgO-C Bricks, magnesia-chrome brick, chrome Corundum bricks, a steel trough brick slipway and a variety of refractory materials such as sizing the outlet; all kinds of industrial furnaces with wear-resistant castables, low cement castable high-strength, impermeable material, gravity feed can be plastic, refractory clay, such as amorphous material; a variety of wear-resistant ceramic materials: ceramic lining, grinding balls, ceramic pipes, ceramic cylinder liner, piston, valves and other ceramics.

主要产品有：各种工业炉蓄热室用堇青石质、莫来石质、高铝质、刚玉质蜂窝体以及各种材质和规格的蓄热球，并配有蓄热体挡板砖；各种工业炉用系列高铝砖、刚玉砖、粘土砖、轻质保温材料、轻质隔热砖、低铁莫来石砖、硅砖、镁砖、铝镁碳砖、镁铬砖、铬刚玉砖、出钢槽滑道砖以及各种定径水口等耐火材料；各种工业炉用耐磨浇注料、低水泥高强浇注料、防渗料、自流料、可塑料、耐火泥等不定形材料；各种材质的耐磨陶瓷制品：陶瓷衬板、研磨球、陶瓷管道、陶瓷缸套、柱塞、陶瓷阀门等。

In this paper, the influenceof remelt and insulation during the secondremelt on the carbide structural in- heritance of high chromium cast iron were studied.

采取重熔的工艺措施并在第二次重熔时进行保温处理，研究高铬白口铸铁中碳化物的遗传性并对高铬白口铸铁的力学性能进行测试。

The effect of heat treatment on the properties of high Cr-W cast iron was studied in this paper.

研究了热处理对高铬钨铸铁力学性能的影响，结果表明，高铬钨铸铁经980℃×2h空冷+400℃×2h回火处理可获得较高的力学性能。

Safety and quality for agricultural product safety demand for non-environmental pollution fruit (GB 18406.2-2001) prescribes eight heavy metals and harmful substances in apple, such as arsenic, hydrargyrum, lead, cadmium, chrome, fluorine, nitrite, nitrate and also the residue limit of 22 pesticides.

另外，发布实施的《食品中污染物限量》(GB 2762-2005)规定了苹果中铅、镉、汞、无机砷、铬、硒、氟和稀土等8种污染物的限量标准[1]；《食品中农药最大残留限量》(GB 2763-2005)规定了苹果中49种农药的残留限量[2]；《农产品安全质量无公害水果安全要求》(GB 18406.2-2001)规定了苹果中砷、汞、铅、镉、铬、氟、亚硝酸盐、硝酸盐等8种重金属和有害物质以及22种农药的残留限量[3]。

Do you know, i need you to come back

你知道吗，我需要你回来

Yang yinshu、Wang xiangsheng、Li decang,The first discovery of haemaphysalis conicinna.

1〕 杨银书，王祥生，李德昌。安徽省首次发现嗜群血蜱。