优选

This poper fabricated copper tool electrode material with nano-La_2O_3 additive,discussed the role mechanism of additive,analyzed the appearance of electroform ed coating,studied the influence of nano-La_2O_3 additive on electrical erosion resistance of tool electrode materials,and optimized electrodeposition parameters.

选用纳米量级稀土氧化物-氧化镧为电铸基液添加剂制备了微工具铜电极材料，探讨了它的作用机理，分析了电铸铸层的微观形貌，并实验研究了纳米氧化镧添加剂对电铸电极材料抗电蚀性能的影响，优选了电沉积工艺参数。

The morphology, component and structure of electrolytically etched surface are characterized and the mechanism of electrolytic etching and graining is also discussed based on the theoretical analysis. The components that can form barrier layer or dissolve the resisting layer on the surface of Al-Mg-Si alloy specimens are investigated through voltamperometric and chronoamperometric analysis in several solutions.

通过对Al-Mg-Si合金在各种溶液中的电流密度—电位曲线及电位—时间曲线的测量与分析，筛选出能够在Al-Mg-Si合金表面形成阻挡层的成分和对阻挡层有刻蚀作用的成分，并进行复配实验对比，优选出偏硼酸钠-硼酸、酒石酸-碳酸钠、磷酸钠-正丁酸和柠檬酸钠-柠檬酸等4种图纹电解刻蚀液体系。

Objective To optimize the water extractive process of Guben Zhike Electuary .

目的优选固本止咳膏的水煎煮提取工艺。

School life is based on elitism and streaming has to be changed to keep in line with innovational changes in mass education.

过往的精英化和优选性的学生生活模式必须有根本性的改变，方能切合青少年的需要和时代的需求。

In this paper,by orthogonal test,the best hazelnut protein beverage emulsify stabilizer is selected,moreover,explore killing germs te.

本研究通过正交试验对榛仁蛋白饮料乳化稳定剂进行了优选，并通过试验对杀菌工艺进行了探讨。

Objective: To compare the diagnostic value of X-ray and endoscopy in hiatus hernia and their value of application.

目的：比较X线与内镜在裂孔疝诊断中的价值及探讨二者应用优选问题。

In this paper, Malolactic fermentation in Cabernet Sauvignon dry red wine was studied with commercial strain 31DH as the control, and with three Oenococcus oeni strains including SD-2a, SD-lb and SD-2h selected by College of Enology, Northwest Sci-Tech University of Agriculture and Forestry.

本文以商品化菌株31DH作对照，应用西北农林科技大学葡萄酒学院分离，优选的三个酒类酒球菌菌株SD-2a、SD-2h、SD-1b，对赤霞珠干红葡萄酒进行了苹果酸-乳酸发酵研究。

This thesis aims at providing an OT Account of Vocalic Epenthesis in Mandarin transliterations from English.

论文在优选论的框架内分析了汉语普通话中的英语音译词的增音问题。

A new technology, Supercritical Fluid CO_2 Extraction, was also supplied to study the plant. The technological parameter was optimal. Total extract of SFE-CO_2 were 4.86 times of the essential oil extracted by SDE, main active extracted constituents were 1.36% high than SDE. The chemical constituents of SFE-CO_2 were also analyzed by GC-MS. 57 constituents were identified, 29 constituents of them were first discovered. 24 constituents were discovered in two extract. Fingerprint is a good technology to elevate the quality of herb medicine. The main active fraction can be extracted by SDE and SFE, Fingerprint was studied respective, chromatographic parameter was acquired. 22 peaks were assigned common peaks in the spectrum of essential oil, 17 peaks were assigned to common peaks in the spectrum of SFE extract.

采用现代共性关键技术超临界CO_2萃取技术，通过正交试验，优选了超临界CO_2提取牛至挥发油的工艺，并与传统的水蒸气蒸馏法进行了比较研究，结果显示：前者提取有效部位的收率为后者的4.87倍，主要有效成分的转移率是后者的1.36倍；采用GC-MS分析方法和NIST质谱库检索，对SFE和SDE所提化学成分进行比较，SFE分离鉴定了57种化合物，占提取物总含量的86.96％，其中29种化合物为首次从该植物中鉴定；后者分离鉴定了69个化合物，占提取物总量的98.28％，其中27种化合物为首次从该植物中鉴定；两种方法的提取物中共有成分25种，包括主要有效成分麝香草酚、香荆芥酚、对聚伞花素等。

Objective: To optimize the best excipient and formation techniques of Guanxin Capsules .

目的：优选冠心胶囊的最佳辅料与制剂成型工艺。

I am accused of being overreligious," she said in her quiet, frank manner,"but that does not prevent me thinking the children very cruel who obstinately commit such suicide.""

客人们在卡罗利娜·埃凯家里，举止就文雅一些，因为卡罗利娜的母亲治家很严厉。

Designed by French fashion house Herm è s, this elegant uniform was manufactured in our home, Hong Kong, and was the first without a hat.

由著名品牌 Herm è s 设计，这件高贵的制服是香港本土制造，是我们第一套不配帽子的制服。