单射

In this work, nanostructure samples of La1-xCaxMnO3（x=0.2、0.3、0.4、0.5）were prepared by hydrothermal-precipitation method . The structural characterization of the powder samples were done by X-ray diffraction. XRD patterns showed that all the samples ate single perovskite-type phase withoutother impurity or secondary phase. The shape and size of samples were performed on Scanning Electron Microscopy. SEM photographs investigated that temperature of hydrothermal effects the phase of samples and alkalinity of the reaction mixture by ΔTad-T curve measurement device at low magnetic fielded

本论文采用水热共沉淀退火法制备了La1-xCaxMnO3（x=0.2、0.3、0.4、0.5）系纳米结构，用X射线衍射仪确定产物为单相钙钛矿结构，无任何杂峰及第二相；用扫描电子显微镜与透射电子显微镜分析了产物的大小和形貌，发现水热温度对产物的形成起决定作用，随着温度的升高，产物由薄膜状向丝状转变，而溶液的碱度可控制产物的形貌和大小，当碱度为6.35mol/L，水热温度为240 C时，La0.6Ca0.4MnO3的主要形貌为纳米丝并有少量纳米颗粒，纳米丝平均直径为40nm；最后测量了粉末样品在低磁场（1.4T）下的磁热效应，发现水热共沉淀退火法制备样品的最大绝热温度明显高于球磨法制备样品的最大绝热温变。

Pregnant adult C 57 BL/6 J strain mice, randomly assigned to 1 of4 experimental groups, were irradiated with exponentially decreasing doses of tritiumbeta-rays but group 1 by single injection of tritiated water at their 12.5 th day of gestation.

报道了在妊娠期以单次腹腔注入氚水，宫内受到累积剂量分别为0、0.05、0.10和0.30Gyβ射丝辐射后，对雄性仔鼠行为、学习及记忆能力的影响。

Trichomes stalked, 3- or 4-rayed stellate, sometimes forked or simple at leaf margin and on sepals.

毛状体偷偷走近，在叶缘和在萼片上的3或4呈线状射出的星状，有时以叉叉的或单的。

If there is only one magnetic field, the result shows that shot noise of singlets and triplets oscillates with the external magnetic field and depend on the symmetric properties of the incident states.

只有一个磁场时，结果显示单态和三态的噪声随着外加磁场震荡，并且依赖一入射态空间部分的对称性。

In this paper, the structure and its morphology of the as-spun isotactic polypro- pylene monofilaments has been investigated by using cross polarized microscope, SALS, SEM, WAXD, density, birefringence and Hardy's thin cross-section device.

本文采用正交偏振光、小角激光散射、扫描电子显微镜，广角X光衍射、密度、双折射和切片技术，对工业用丝——IPP单丝的未拉伸丝的结构及其形态进行了广泛的研究。

However, for the collision processes in He target, a large discrepacy between the CTMC results and experimental measurement is found. As is well known, the microcanonical distributions of bounded electrons in CTMC method is quite different from quantal distributions, we modified the initial microcanonical distribution by using eleven different ionization thresholds of electron bounded in target. With modification, we calculated the collisional process of O~(3+) with He, and the total cross sections of all processess are calculated as a function of the incident energies. The agreement with experiments is improved by the modified distributions.

但由于靶电子的微正则分布与量子分布有很大不同，在计算离子与He靶碰撞时发现结果与实验差距很大，我们基于使用多个系统总能量U值，对初始电子的微正则分布进行了优化，使其更接近于量子力学的径向空间分布，然后计算了O~(3+)与氦原子随入射离子能量变化的各种反应过程截面，发现优化极大地提高了计算精度，特别是我们的模型对于描述单电子、双电子丢失过程非常成功。

The paper discusses the design of the experiment of low press radio-frequency plasma, using TFS and Langmuir to get V-Icurve including temperature of plasma body .

文章提出了低压射频等离子体实验设计体系，应用飞行时间谱仪和Langmuir单探针，测得Langmuir型V-I曲线，其中包括等离子体温度信息。

In order to increase our production capacity, the company has purchased 31000 square meters land on Dec 2004 and planned to set up new factory facilities to manufacture Plastic Injection Mold, Sheet Metal Die and Products Assembly.

2004年12月，为了提高产品的接单能力，公司于中国大陆购买约31000平方米的土地，计划设立塑料射出厂、模具厂、组装厂及泡棉厂，新的工厂将于2006年正式投产。

A hardware design of single chip GPS receiver is presented which uses Infineon Technologies and Global Locate's Hammerhead.

为了满足使用的需要，介绍一种基于Hammerhead芯片实现单芯片全球定位系统接收机的硬件设计，提出了射频印刷电路板(Printed Circuit Board，PCB)设计的解决方案。

His other contributions include relativistic cosmology, capillary action, critical opalescence, classical problems of statistical mechanics and their application to quantum theory, an explanation of the Brownian movement of molecules, atomic transition probabilities, the quantum theory of a monatomic gas, thermal properties of light with low radiation density (which laid the foundation for the photon theory), a theory of radiation including stimulated emission, the conception of a unified field theory, and the geometrization of physics.

的经典问题和它们的量子理论的应用，解释了布朗分子运动，原子跃进概率，单原子气体的量子论，地辐射密度的光的热性质，包括受激发射的放射理论，统一场论的概念和物力几何化。爱因斯坦写了多于50篇的科学著作，也包括非科学的书。1999年爱因斯坦被时代杂志封为&世纪人物&，一份有卓越成就的物理学家的民意测验封他为无论何时都是最伟大的物理学家。现代文化认为&爱因斯坦&和天才是同一个意思。

On the other hand, the more important thing is because the urban housing is a kind of heterogeneity products.

另一方面，更重要的是由于城市住房是一种异质性产品。

Climate histogram is the fall that collects place measure calm value, cent serves as cross axle for a few equal interval, the area that the frequency that the value appears according to place is accumulated and becomes will be determined inside each interval, discharge the graph that rise with post, also be called histogram.

气候直方图是将所收集的降水量测定值，分为几个相等的区间作为横轴，并将各区间内所测定值依所出现的次数累积而成的面积，用柱子排起来的图形，也叫做柱状图。