查询词典 M-B

Moreover, the hot compressive deformation behavior of the RS/PM AZ91 magnesium alloy and AZ91 alloy matrix composite were also investigated, the conclusions are drawn as follows:1. The processing parameters of the atomization-twin rolls quenching technology were optimized as follows: the diameter of the nozzle 1mm, the wheel velocity 25m/s, the pressure of atomization gas 0.3MPa and Ar gas for melt injection 0.1MPa. The RS AZ91 alloy flakes exhibited fine and uniform microstructures. When the flakes were extruded at 673K, extruded velocity of 0.1mm/min and extrusion ratio of 25:1,the magnesium alloy rods with clean surface, uniform dimension and excellent mechanical properties were obtained.2. The RS AZ91 magnesium alloy powders prepared by atomization-twin rolls quenched technology exhibited fine equiaxed grains with the grain size of 1-3μm, the phase constituent included supersaturate solid solution phaseα-Mg and miner fineβ-Mg_(17)Al_(12) phase. The as-extruded materials also exhibited equiaxed grains with the size of 5-7μm and a large number of fineβ-Al_(12)Mg_(17) and fewer AlMg_2Zn phases were detected in the alloy.

本文还研究了快速凝固/粉末冶金AZ91镁合金热压缩变形流变应力行为，快速凝固/粉末冶金法原位生成Mg_2Si增强AZ91镁基复合材料，经过系统的研究，获得如下结论：1、雾化-双辊急冷法在下列工艺参数组合下：双辊线速度25m/s；喷嘴直径1mm；熔体压射压力0.1MPa；雾化气体压力0.3MPa。，可获得宏观尺寸细小、微观组织均匀细小、综合性能优良的的快速凝固AZ91镁合金细碎箔带，快速凝固箔带在挤压温度为673K、挤压速度为0.1mm/min，挤压比为25：1时，可获得的外表光洁、尺寸均匀、组织性能优异的镁合金棒材。2、雾化-双辊急冷法制备的AZ91镁合金粉末态为细小等轴晶组织，晶粒尺寸1-3μm，组织为α-Mg过饱和固溶体和微量的细小β-Mg_(17)Al_(12)相组成；粉末挤压棒材为等轴晶组织，晶粒尺寸5-7μm，组织中含有大量细小的β-Al_(12)Mg_(17)以及AlMg_2Zn析出相，室温力学性能，抗拉强度383MPa，屈服强度275MPa，断后伸长率7.5%。

Expression of M, NP, F and HN genes were detected and confirmed by the indirect immunofluorescence analysis. The syncytium formation was observed in the HeLa cells co-transfected with pCAGG-M, pCAGG-NP, pCAGG-F and pCAGG-HN recombinant plasmids at 48h post transfection.

纯化后的重组质粒通过脂质体单独转染HeLa细胞，经间接免疫荧光试验检测到了M、NP、F和HN蛋白的表达。pCAGG-M、 pCAGG-NP、pCAGG-F和pCAGG-HN重组质粒组合共转染HeLa细胞48h后，可以观察到明显的细胞融合现象。

The results show that this classifier has better efficiency performance in processing the flour and talcum powder in the range of 49 μm(300 mesh)-84 μm(180 mesh).

结果表明，该筛分机对处理粒度为49μm(300目)-84μm(180 目)的面粉和滑石粉具有较高的分级效率。

Two above methods are generalized to tensor product Bézier surfaces and triangular Bézier surfaces, we give two approaches of degree reduction for tensor product Bézier surfaces, each of which reduces a given degree n×m tensor product Bézier surface to a n〓×m〓 one, and two methods of degree reduction for triangular Bézier surfaces, which reduce a given degree n triangular Bézier surface to a degree m one. The explicit formulas of control points for reduced tensor product and triangular Bézier surfaces are obtained respectively.

张量积Bézier曲面的两种降阶方法均可把n×m阶张量积Bézier曲面一次降阶为n〓×m〓阶张量积Bézier曲面；三角Bézier曲面的两种降阶方法均可把n阶三角Bézier曲面一次降阶为m阶三角Bézier曲面，并给出降阶张量积Bézier曲面和降阶三角Bézier曲面控制顶点的显示表示式。

Regular tessellation is formed by identical regular m-polygons for some fixed m . Find the sum of all

用相同的正 m 边形能密铺平面，求所有可能 m 值的总和。

Based on these simulation results ,specify the distance between the pads and the CPWis 150μm ,the number of the thermocouple is 50 ,the distance between the CPWand the thermo2pile is 50μm. GaAs and Au are chosen as arms of the thermopile ,and TaN as the terminal resistor.

根据这些模拟结果，传感器中接触垫与共面波导之间的渐进区长度设计为150μm ，热电偶的对数设计为50 对，热电堆与CPW之间的距离设计为50μm ，并选择了GaAs 和Au 作为热电偶的两臂，TaN 作终端电阻。

The calibration experiment with 4 cameras in a 9.6 m×6.4 m region and the error analysis shows that the total mean error is only 7.96 mm.

通过4部摄像机在长9.6 m，宽6.4 m的区域内进行的标定实验和误差分析表明，该方法的整体平均误差仅为7.96 mm。

However, the Izod impact strength of PHB can not be improved in this way. 6. Adding plasticized PPC, a good toughener for PHB, into PHB can change its fracture behavior from brittle to ductile, and increases the Izod impact strength from 36J/m for PHB to 307J/m for 70PHB/30PPC/20PGC.

增塑后的PPC是PHB的良好增韧剂，使PHB由脆性断裂转变为韧性断裂，最佳增韧效果可使PHB的抗冲击强度由36J/m增加到70PHB/30PPC/20PGC的307J/m，增加8倍。

Surface water was sampled at the three red tide stations during the Guinardia delicatula bloom in Jiaozhou Bay on February 9-10, 2004 and the colloidal substances were separated by filtration(0.7μm)and cross-flow ultrafiltration (1000 Daltons). The organic carbon in the filtrates and retentates were analyzed respectively. Heterosigma akashiwo and Skeletonema costatum were cultured in the 000Daltons ultrafiltrate and the retentates with different amount of colloidal substances (1000 Daltons-0.7μm).

2004年2月9~10日在胶州湾发生的柔弱几内亚藻赤潮期间分别在3个典型赤潮站位采集表层水样，利用过滤(0.7μm)和切向超滤(1000 Daltons)分离赤潮暴发水体中的胶体物质，分析了不同滤液及截留液的有机碳含量，并将赤潮异弯藻和中肋骨条藻在000 Daltons的超滤液及具有不同含量胶体物质(1000Daltons~0.7μm)的截留液中进行培养。

Surface water was sampled at the three red tide stations during the Guinardia delicatula bloom in Jiaozhou Bay on February 9th-10th,2004 and the colloidal substances were separated by filtration (0.7μm) and cross-flow ultrafiltration (1000 Daltons). The organic carbon in the filtrates and retentates were analyzed respectively. Heterosigma akashiwo and Skeletonema costatum were cultured in the 000Daltons ultrafiltrate and the retentates with different amount of colloidal substances (1000 Daltons-0.7μm).

2004年2月9~10日在胶州湾发生的柔弱几内亚藻赤潮期间分别在3个典型赤潮站位采集表层水样，利用过滤（0.7μm）和切向超滤（1000 Daltons）分离赤潮暴发水体中的胶体物质，分析了不同滤液及截留液的有机碳含量，并将赤潮异弯藻和中肋骨条藻在000 Daltons的超滤液及具有不同含量胶体物质（1000 Daltons~0.7μm）的截留液中进行培养。

However, as the name（read－only memory）implies, CD disks cannot be written onorchanged in any way.

然而，正如其名字所指出的那样，CD盘不能写，也不能用任何方式改变其内容。

Galvanizes steel pallet is mainly export which suits standard packing of European Union, the North America. galvanizes steel pallet is suitable to heavy rack. Pallet surface can design plate type, corrugated and the gap form, satisfies the different requirements.

镀锌钢托盘多用于出口，替代木托盘，免薰蒸，符合欧盟、北美各国对出口货物包装材料的法令要求；喷涂钢托盘适用于重载上货架之用，托盘表面根据需要制作成平板状、波纹状及间隔形式，满足不同的使用要求。