查询词典 method of synthesis

The result from the three simulation model continues that two step synthesis method is one effective ray tracing method.Because it can accurately persue the least travel time of ray fast and have very strong antinoise nature, so it can be used to the complex medium tomography analysis.

通过构造的数值模型验证了改进算法，表明该算法是一种有效的射线追踪方法，能快速准确的追踪射线的最小走时数据并且具有很强的抗噪性，可以应用到复杂介质的层析成像中。

The imprecise polynomial circuit optimization is based on arithmetic transformation method, considering the fixed point and floating point representation condition first, then give a realization of circuits under different accuracy boundary, trade off error with power dissipation and area, applying branch and bound method to find the solution with minimal cost, determine the minimal word length which satisfies the error bound, make use of the automation synthesis approach to get ultimate optimize structure at the same time.

非精确多项式电路优化基于算术变换方法，首先考虑电路的定点和浮点表示情况，给出电路在不同精度界限下的实现，进行误差和功耗、面积的权衡，然后应用分枝定界方法求解出最小代价电路，决定满足误差要求的最小字长，同时利用自动综合优化方法得到最终的优化结构。

This method was an effective method for the synthesis of composite materials.

这种新型的工艺方法将为新型复合材料的制备提供有效的手段。

It was found that the MCM-22 zeolite catalyst prepared by the VPT method not only showed good crystallinity and high BET surface area, but also better crystal growth orientation and denser structure.The catalyst showed high activity, selectivity and good stability for alkylation of benzene with propylene, especially better selectivity to the end product cumene.The shaped MCM-22 zeolite catalyst prepared by the VPT method has good prospect of industrial application in synthesis of cumene.

结果表明：汽相法制备的MCM-22分子筛催化剂不仅具有较好的结晶度和较高的微孔表面积，而且具有更好的晶体生长取向性和更加致密的结构；在烷基化反应中也具有很好的活性、选择性和稳定性，特别是对目的产物异丙苯的选择性明显高于水热法合成的催化剂，在异丙苯合成上具有很好的应用前景。

Students should grasp the classification of the nitration reactions and its industrial application, the main nitration reagents and the nitration method, the classification of the sulfonation reactions, the function of sulfo group and its in the industrial application, sulfonating agents and its industrial application, the separation method for the sulfonated compounds, the widespread applicationof diazonium and the coupled reactions and its in the industry specially employed in the dyes and the pigments synthesis

掌握硝化反应的分类及其在工业上的应用。掌握主要的硝化试剂和硝化方法。掌握磺化反应得分类、磺酸基的作用及其在工业上的应用。掌握磺化剂其在工业上的应用。了解磺化物得分离方法。掌握重氮化及偶合反应及其在工业上特别是在染料和颜料合成中的广泛应用。

Now there have been a certain number of works on the research for thekinematic synthesis of spatial RSSR mechanism for causing the driving and driven linkscorresponding angle displacement such as the direction cosine matrix method and rotationvector method.

目前已有若于著作研究了实现主从动杆对应角位移的空间RSSR机构的运动综合问题，如方向余弦矩阵法［1］、回转向量法［2］。

A thermal cathode electron gun used in the accelerator for radiation sterilization with the synthesis method is redesigned, and the validity of this method is proved.

采用综合法重新设计了现有的用于灭菌加速器的热阴极电子枪，并对应用综合法的合理性进行了讨论。

During the investigations, some basic research methods and theories such as mending the end section profile of the screw arbor gear applying the conjugate principle, the milling outline for the screw arbor profile cutter by kineto-synthesis method, establishing the dummy variable model of the screw arbor by the CAD method, the theory of the distributing of the fluid pressure on the screw, the precision analyzing and computing screw profile by the dummy model and FEM method are established.

在研究过程中确立了一些基本的研究方法和基本的理论。如应用共轭原理改进螺杆端截面齿曲线的、利用运动合成的方法研究螺杆成形铣刀廓型、应用计算机辅助设计的方法建立螺杆的虚拟模型、应用牛顿流体理论研究螺杆中的流体压力分布、应用有限元分析计算方法对螺杆做精确分析计算。

The method avoids loose and porous hydrotalcite thin film by traditional chemical conversion method and powder coating method, and has such advantages as simple process and mild synthesis conditions. The obtained hydrotalcite thin film has excellent anticorrosive performance, and can improve the anticorrosive performance of Mg alloy.

本发明避免了传统的化学转化法和粉体涂覆法得到的水滑石薄膜结构疏松多孔的问题，且工艺简便，合成条件温和，比传统的水滑石膜层更具有优良的抗蚀性能，可以提高镁合金的耐腐蚀性能。

Using this method makes the designed piping have the characteristics of the synthetic minimum of energy loss construction and mainteuance costs, and excellent technical quality. It shows that the application of the method to a steam piping design can achieve saving of operating cost by about 20 percent against the design made by non-thermoeconomic synthesis method.

采用该方法进行设计，可使热网的初投资、能耗及运行维护等费用综合最小，而且具有优良的技术性能，它与不采用热经济最优综合方法的设计相比，可做到平均节省运行成本20%以上。

She gently rebuff ed him, but agreed that they could be friends

她婉言拒绝了，但同意作为朋友相处。

If in the penal farm, you were sure to be criticized.

要是在劳改农场，你等着挨绳子吧！