复合

The preparation methods of nickel-coated composite powder consisting of hydrothermal hydrogen reduction, electroless plating, decomposing of nickel carbonyl, and electroplating were summarized and its applications in thermal spraying field such as base, abradable seal, abrasion resistant, and self-lubricating coatings were introduced.

本文综述了镍包覆型复合粉末的制备方法，主要有水热氢还原法，化学镀法，羰基镍分解法和电镀法；介绍了国内外常见镍包覆型复合粉末在热喷涂领域中的应用情况、包括作为底层、封严涂层、耐磨涂层和自润滑涂层材料。

The mainly conclusions in our research are as flowing: tungsten trioxide powders with 100 nm primary particle are obtained by spray drying,calcination and wet milling process, and an average size of quadric particle composed of agglomerated particles is 0.64 μm; tungtsen powders with 39 nm grain size and 60 -100 nm primary particle are produced directly from previous tungsten trioxide using one step reduction in hydrogen at 700℃, and an average size of quadric particle of tungsten powder is 2.91 μm; tungsten trioxide and copper tungstate compound powders with 100 nm - 200 nm primary particle are produced using ammonia metatungsten and copper nitrate as raw materials by spray drying,calcination and wet milling process;the compound powders are transformed completely into tungsten and copper compound powders by reduction in hydrogen at 700℃,in which tungsten grain size is 59 nm and copper grain size is 51 nm; primary particle size of compound powders is 80 - 120 nm,and an average size of agglomerated quadric particle is 1.86 μm; tungsten nitride powders with 35 nm grain size are prepared from tungsten trioxide powders by nitrogen treatment thoroughly in pure ammonia at 650℃, and an average size of agglomerated quadric particle is 0.64 μm in normal temperature.

研究结果表明：采用喷雾干燥—焙烧—球磨工艺可以制备出粒度约为100nm的WO_3粉体，它们在团聚后形成的二次颗粒平均粒度为0.64μm；采用一步直接氢还原方法可在700℃下从上述WO_3粉体制备出晶粒尺寸为39nm的、一次颗粒粒度为60-100nm的W粉体，其二次颗粒的平均粒度为2.91μm；以偏钨酸铵、硝酸铜为原料，采用喷雾干燥—焙烧—球磨工艺可制备出一次粒度为100-200nm的WO_3和CuWO_4混合粉体；采用氢还原工艺可在700℃下将这种粉体完全转变为W、Cu复合粉体，其中W的平均晶粒粒尺寸为59nm，Cu的平均晶粒尺寸为51nm；复合粉体的一次颗粒尺寸为80-120nm，在常温下团聚后形成的二次平均粒度为1.86μm；采用纯氨氮化工艺可以在650℃下由WO_3粉体制得WN，其晶粒尺度为35nm，在常温下团聚后的二次平均粒度为6.4μm。

Pot and field experiments were conducted to study the response to application rate of urea labeled with ~(15)N combined with compound nitrogen fertilizer synergists in the growth,yield,uptake and utilization rate of urea of maize,In pot experiment,the standard urea application rate is 120mg/perpot;in field experiment,the standard urea application rate is 157.5kg/hm~2. Maize with ~(15)N-lurea.

用15N-尿素进行盆栽和田间试验(盆栽试验尿素标准用量为120mg/盆，田间试验尿素标准用量为157.5kg/hm2)，研究了复合氮肥增效剂用量、尿素减量与复合氮肥增效剂配施对玉米生长、籽粒产量和氮素吸收利用的影响。

The property of Ba/Zn liquid complex heat stabilizer doped with larium isooctoate was studied.By using the electronic property of La 3+ to synergise with barium isooctoate and zinc isooctoate,both the short term and long term stabilities of the complex stabilizer were improved,which was of benefit to the improvement of the processability and weather resistance of PVC.

研究了异辛酸镧掺杂钡锌液体复合热稳定体系的性能；利用La3+的电子性与异辛酸钡、异辛酸锌进行协同作用，提高了复合液体热稳定剂的初期及长期稳定性，改善了聚氯乙烯的加工性能及耐候性；通过热烘法、刚果红法、热重分析及紫外光谱考查了稀土含量、复配助剂对镧/钡/锌三元体系热稳定性的影响。

The results showed that 1518kg farmyard manure and 59.9kg chemical fertilizer, equal to 38kg N, P and K pure nutrient, were applied per unit area (667m2) of arable land,and that the nutrient ratio of farmyard manure and chemical fertilizer was 4.9∶5.1 (N∶P2O5∶K2O=1∶0.4∶0.62), and that the total complex grain output per year and the complex output value were 479.6kg and 804.47yuan per 667m2 respectively, and that the manure cost and the pure income from manuring were 148.25 yuan and 716.22 yuan per 667m2 respsctively, and that 12.6kg grain output could be gotten averagely from 1kg nutrient input The main factors affected the manuring effect were topography, cropping systems and crops kinds and manuring quantity from a peasant household as well effected the soil fertility significantly.

结果：平均每667m2耕地投入农家肥1 518 kg，化肥59.9 kg，折氮磷钾纯养分38 kg，农家肥与化肥养分比为4.9∶5.1，N∶P2O5∶K2O=1∶0.4∶0.62，全年粮食复合单产479.6 kg/667m2，复合产值864.47元，肥料成本148.25元/667m2，肥料纯收入716.22元，肥料产投比值5.9，投入1 kg养分产粮12.6 kg。影响投肥效应的主要因素为地势、耕制和作物。农户投肥数量对土壤肥力影响较大。

The composite coating followed by laser remelting and then aluminizing displays the best cyclic oxidation behavior, and scale spalls least; the composite coating followed by diffusion in 1200℃ for 6h does the next best.

激光重熔处理后再渗铝的复合镀层抗循环氧化性能最好，氧化膜剥落少。高温扩散处理后再渗铝的复合镀层次之。循环氧化200小时后，所有涂层内侧退化较轻。

The results indicated that the sorptions of the tested elements obey the Langmiur equation in the single condition and only Pb obey the Langmiur equation in the co-existed condition.

这些元素在单独污染条件下土壤对其分别吸附均表现为Langmiur方程，而在复合污染中，仅土壤对铅的吸附复合Langmiur方程。

Objective: To observe the neurotoxicity of hypoxia at high altitude in combination with soman intoxication .

目的：通过模拟高原缺氧复合梭曼中毒，观察缺氧、梭曼中毒复合效应的神经毒作用。

It is a part of the biggest printing equipment manufacturer in Asian with US$2.5 billion turnover － Beiren Group, and is dedicated to manufacture Rotogravure Printing Presses, Laminating Machines, Slitter/Rewinders, Co-extrusion coating lines and Flexo Printer/ Slotters as well.

主要制造凹版印刷机、复合机、分切机及收卷机、流延复合生产线和柔板印刷开槽机。

The formation mechanism of the cerium compounds on the zinc powder subst rate was preliminarily discussed , and the effect s of the cerium compounds on the cycle and discharge properties of the zinc elect rodes were also investigated.

L Ce (NO 3) 3溶液中成功制得含有铈化合物的锌基复合粉，探讨了铈化合物在锌粉基体上的形成机制，并研究了锌基复合粉中铈化合物对锌电极的循环放电性能的影响。

Singer Leona Lewis and former Led Zeppelin guitarist Jimmy Page emerged as the bus transformed into a grass-covered carnival float, and the pair combined for a rendition of "Whole Lotta Love".

歌手leona刘易斯和前率领的飞艇的吉他手吉米页出现巴士转化为基层所涵盖的嘉年华花车，和一双合并为一移交&整个lotta爱&。

This is Kate, and that's Erin.

这是凯特，那个是爱朗。