查询词典 nano

The microhardness of the nano-Ag is 0.9GPa which is about 2 times of that for coarse-grained polycrystalline metal silver.

大尺寸纳米银块体的室温显微硬度为0.9GPa，是多晶粗晶银的2倍，显示高硬度特征。

The nano-Co particles were prepared by chemical method from zinc dust and cobalt chloride.

摘 要：以锌粉和氯化钴为原料，采用化学法制备纳米Co粒子。

The results showed that under the prerequisite of constant color properties of colored products without affecting the properites of the product, nano-BaSO4 could be used as a substitute of partial pigment, and the maximum proportion is up to 30%.

结果表明：在不改变被着色制品色彩性能的前提下，纳米BaSO4可以替代部分颜料，替代最大比例可达到30%。在色母粒浓度为50%时，纳米BaSO4替代颜料的效果最好。

Vacuum freeze-drying is a technology used for drying, color protection, fresh keeping, or nutrition preservation of food, biologics, biomaterials, or micro/nano materials. Its principle is to use sublimation principle under the vacuum state, and to obtain dried products, whereby frozen water in the material sublime or shift directly from the frozen state to a gas state, and watery element is removed without melt.

冷冻真空乾燥技术是一项适用於食品、生物制品、生医材料、微奈米材料的乾燥、护色、保鲜、保存、保营养成分的技术，其原理是在真空状态下，利用升华原理，使预先冻结的物料中的水分不经过冰的融化直接以冰态升华为水蒸气而除去，从而获得乾燥制品。

In this project, the selection criteria of matrix and reinforcement for obtaining composites with high strength and toughness are determined. The as-cast and aged microstructures of composites reinforced with particles of different strength are observed, and their metallurgical conditions and stabilization mechanisms are analyzed. The aging precipitation behaviors and mechanisms are studied. Some characteristics of nano-materials (micro-distortion areas) are found in 150nm- Al2O3p/Al composites and their formation mechanisms are expatiated. The "flexible" restriction to the deformation of the matrix by low strength AlN particle is observed by in-situ TEM and SEM techniques, and the mechanisms of its resist on cracks propagation and its contribution to composite strength are revealed. The high temperature deformation behaviors of Al2O3p/Al composites are studied. A rare-earth coating is established on sub-micron Al2O3 particles, leading to an improvement in wettability between coated Al2O3 and liquid aluminum and a decrease in infiltration pressure. The strength and ductility of coated particles reinforced composite are also increased. The interfacial characteristics, bonding structures and their formation mechanisms are studied, and the crystal orientation relationships between reinforcement particles and aluminum matrix are investigated. Finally a lighter composite with better balance of strength and damping properties is reinforced with hollow ceramic microballoons of ultra-lower strength.

本项目发现了获得高强度和高韧性复合材料的基体、增强体选择依据；观察了各种强度质点增强复合材料的铸态和时效态微观组织，分析其微观结构形成的金属学条件及稳定性机理，研究了其时效析出规律和时效机制，发现了150nmAl2O3颗粒增强铝基复合材料基体中的纳米材料特征，并解释了其形成机理；利用TEM和SEM动态拉伸技术发现了低强度质点AlN颗粒对变形协调的&柔性强化&机制，揭示了其对裂纹扩展的阻碍作用和对复合材料高强度的贡献；研究了中强度质点的Al2O3颗粒增强铝基复合材料的高温变形行为，并对其进行了稀土界面层设计与制备，改善了颗粒与铝合金之间的界面润湿性，降低了复合材料铸造渗透压力，提高了复合材料的强、韧性；研究了多种复合材料界面结构及形成机理，确定了增强体与基体之间的界面结合机制，分析了复合材料界面处的晶体学位向关系；最后制备了含微孔的中空型陶瓷颗粒增强的特种复合材料，得到了强度和阻尼综合性能较好的轻质复合材料。

As Dr Cui explains in a recent issue of Nano Letters, when the ink dries, the nanotubes bind to the mesh of fibres in the fabric (it works for both cotton and polyester), making it conductive.

在最新的《纳米快报》中，崔博士解释道，当墨水干时，碳纳米管会粘附在衣服的纤维上，包括棉质或聚酯的材料，使它附有导电性。

In this text, we introduce our research of using silver nanostructures to enhance the detection of fluorescent molecules. Different shapes of nano structures were studied by the dark-field optical microscopy. Comparing with the triangular and rectangular structures, the rod-like structure has the best efficiency in the fluorescence enhancement.

本文介绍利用银奈米结构所产生的局域增益光场应用於萤光分子之检测，不同几何结构所造成的萤光增益效应不同，我们发现奈米圆柱在相同的条件下，对萤光亮度提升有最佳效果。

The morphology, structure and composition of the final nano-products were characterized by scanning electron microscope, energy-dispersive spectroscope and x-radial diffraction analysis.

采用扫描电子显微镜、X射线衍射、EDS能谱仪和透射电子显微镜对其表面形貌、结构和成分进行分析，结果表明所得纳米线为In2O3。

By sol-gel method, S-N co-doping nano-TiO2 sol was prepared, and S-N co-doping TiO2 thin film carried fabric has been prepared by using dipping process.

采用溶胶－凝胶法制备S-N共掺杂改性纳米TiO2溶胶，通过浸渍工艺对棉织物进行整理，制备出织物负载S-N共掺杂TiO2薄膜。

Many disease-causing culprits such as bacteria and viruses are nano size.

很多致病的元凶如细菌和病毒均是纳米大小。

In the negative and interrogative forms, of course, this is identical to the non-emphatic forms.

。但是，在否定句或疑问句里，这种带有"do"的方法表达的效果却没有什么强调的意思。

Go down on one's knees;kneel down

屈膝跪下。。。下跪祈祷