制备

It was demonstrated that cuticles of some animals such as dung beetle and ground beetle, display the varied non-smooth or textured morphologies, For examples, the convex domes, dimpled or scaly form morphologies.

设计并制备了七种分布的凸包型非光滑表面，在JFY50型热压机上通过热压成型的方法制备了轻质碳酸钙填充酚醛树脂基复合材料凸包结构，并通过粘接方法将凸包固定在45钢底板上，制备了凸包型仿生非光滑表面试样。

Preparation of a high-strength α-hemihydrate gypsum based on complex pastern material is studied by using a complex active agent of industrial waste to improve the crystal properties of hemihydrate gypsum and to eliminate impurities' effect on the properties of products of phosphorous gypsum ,such as phosphorous and fluorine.

以磷石膏为基体原料制备高强α-半水石膏基复合材料，利用工业废渣中的激发剂来改进半水石膏的结晶性质，以消除磷石膏中磷、氟等杂质对磷石膏制品性能影响，同时激发剂使具有潜在活性的矿渣得以活化，制备的低温陶瓷化磷石膏基复合材料制品兼具陶瓷和石膏性能；SEM图片表明，制备的复合材料水化后晶体结构粗大、致密

PG was used to produce different types of binding materials as β-hemihydrate gypsum,Ⅱanhydrate gypsum and α-hemihydrate gypsum and the relevant factors were also studied systematically including the pretreatment methods of raw material, preparation process, the material properties, the mixing proportions, curing conditions and the hydration mechanism of different systems.

对磷石膏制备胶结材进行了深入、系统研究，包括β-半水石膏、Ⅱ-无水石膏的原料预处理方式、制备工艺、性能及其复合胶结材配比、养护、性能与水化硬化机理，α-半水石膏的制备工艺及其性能影响因素，二水磷石膏改性胶结材的配比、养护、性能及其改性机理。

XRD,X-ray EDS analysis,AFM and Fourier transform infrared spectroscopy were employed to characterize PbSe thin films. The results show that all of the films were heteromorphy and the growth temperature has effect to the diffract peaks of the films. The contents of PbSe thin films by PLD consisted with the targets,and realizing thin films deposited with same constitutes; the films had rather flatness surface and compact structure; the peak-to-tail roughness of PbSe thin films surfaces was less than 200nm;they had sensitivity to light of a specified wavelength and obvious absorption edge at 5μm corresponding to band-gap width of PbSe thin films;light of wavelength less than 5μm was strongly absorbed.

通过脉冲激光沉积法在Si(111)和SiO2玻璃基片上制备了PbSe薄膜。X射线衍射、X射线能谱、原子力显微镜、傅里叶变换红外光谱仪测试结果表明：所有制备的薄膜都为多晶薄膜，发现薄膜生长温度对薄膜衍射峰有一定影响；PLD法制备的薄膜的成分与靶材的基本一致，实现了同组分沉积；所有薄膜表面比较平滑，表面不平整度小于200nm，结构比较致密；PbSe薄膜对红外光具有敏感的响应特性；在波长为5μm处存在有明显的吸收边，此吸收边对应于直接带隙PbSe材料的禁带宽度；对应于波长小于5μm的红外光，PbSe薄膜存在有明显的强吸收。

It was found that catalyst activity of USY-1 was the highest under weight ratio of H3PW12O40/USY-1=1∶1,the concentration of H3PW12O40 of 25%,the temperature of 480 ℃ and the time of 4 h.

通过对催化剂制备的正交试验，优选了催化剂的制备条件：H3PW12O40与USY-1质量比为1∶1，H3PW12O40浓度为25%，480 ℃焙烧4 h制备的催化剂活性最高。

In order to reach the purpose of using pre-laser cladding method preparation of Ni-based amorphous alloy coatings on 45 steel substrate surface by the method was carried out. The principles of the three clusters and the amorphous line of the law of composition rules were used. The Ni59.35Nb34.45Sn6.2 alloying powder which has a great glass-forming ability in conventional preparation methods of amorphous alloys was chosen. In the protection of atmosphere, the amorphous surface coating was prepared. The microstructure, micro-hardness and performance of the different output power of the laser cladding were analyzed.

中文摘要：为了达到研究预置激光熔覆可以在45钢上制备Ni基非晶合金涂层的目的，采用非晶形成能力三判据原则及非晶成分团簇线定律法则，选择了采用常规非晶合金制备方法中具有极大玻璃形成能力的Ni59.35Nb34.45Sn6.2合金粉末，在保护气氛下，制备非晶涂层，并对不同输出功率下得到的涂层进行微观组织和结构表征及性能测试。

The various methods for the preparation of lead dioxide that have been proposed from time to time may be subdivided into chemical and electrolytic preparations.

各种层出不穷的二氧化铅的制备方法可分成化学制备和电解制备法两类。

The various methods for the preparation of lead dioxide that have been propose d from time to time may be subdivided into chemical and electrolytic preparations.

各种层出不穷的二氧化铅的制备方法可分成化学制备和电解制备法两类。

For example, the aromatic hydrocarbons such as benzene, has been found to be responsible for the leucocythemia and lung cancer. And they are frequently encountered in every day life.

本论文采用固相合成的方法制备了在TiO_2中分别混合不同原子百分比的Al_2O_3、SnO_2、In_2O_3和Cr_2O_3的敏感材料，并采用传统的陶瓷型气敏传感器的制备工艺制备了气敏元件。

The growth process of nanocrystalline copper particles into single crystals, induced by electron irradiation, has been observed by TEM, and Kikuchi lines exist in its electron diffiaction microphotograph, indicating that the thickness of the single crystal formed by electron irradiation is more than 100nm.

用γ射线辐照法成功地制备出Ag-Cu及Au-Cu合金粉末。通过改变实验条件如调节溶液中金属离子的浓度比则可控制所制备合金的组成。因此，发展γ射线辐照法制备合金粉末具有重要的应用价值。

Plunder melds and run with this jewel!

掠夺melds和运行与此宝石！

My dream is to be a crazy growing tree and extend at the edge between the city and the forest.

此刻，也许正是在通往天国的路上，我体验着这白色的晕旋。