优选

The penetration rate was increased by using the laddering large hole casing design and optimized drill bits.

胜科1井是中国石化在胜利油田部署的一口重点科学探索井，完钻井深7 026 m，φ339.7 mm技术套管下深2 922.78 m，φ311.1 mm大井眼井段深达4 155 m，采用了阶梯式大井眼结构设计与钻头优选技术，提高了大井眼钻井速度。

Objective:To determine the optimal method of extracting the effective element,chlorogenic acid,from lonicera hpoglauca.

目的：通过对比实验，优选提取金银花有效成分绿原酸的最佳工艺。

The orthogonal test design was used to arrange sequent experiments to test the effect of the four main factors,i.e.,consistency of ethanol,times of reflux,extraction time and temperature on the concrete yield of Lysimachia foenum graecum Hance,and to establish the optimal extraction conditions.

用 L9(34 )正交设计法进行灵香草浸膏的提取试验，研究乙醇浓度、提取温度、提取时间、回流次数对浸膏得率的影响，确定提取灵香草浸膏的最佳条件后，再对所得粗产品进行脱色试验，优选出粗浸膏脱色的最佳条件。

On the base that in all sorts of evaluations of case of the other side the element had consider and be analyticed, put forward to use the much target grey situation that adds target weight the actor that decision-making method will come to settle design program selects an issue, with period the bearing that makes a macrobian life, high reliability and good performance.

在对方案的各种评价因素进行了探究和分析的基础上，提出采用添加目标权重的多目标灰局势决策方法来解决设计方案的优选新问题，以期制造出长寿命、高可靠性和优良性能的轴承。

Especially, the Early Mesozoic tectonic and magmatic activities and their relationship with gold mineralization are studied with special efforts.

并在此基础上系统地总结了本区金矿的找矿预测标志，进行了靶区优选和储量预测。

To select the optimun condition of Herba Ephedrae being decoctered first in Mahuang decoction by orthogonal test.

采用正交试验优选麻黄汤中麻黄的先煎条件。

Regard hydrochloric acid of Mahuang as the index, adopt HPLC to determine the content of the hydrochloric acid of Mahuang , whether through is it test excellent to elect the best technology to hand in.

以盐酸麻黄碱为指标，采用高效液相法测定盐酸麻黄碱的含量，通过正交试验优选出最佳工艺：取原药材饮片，加10倍量的60%乙醇，回流提取三次，每次105min的制备工艺最佳。

The Mannich-type addition of O , O'-dialky phosphite to 2-fluorobenzaldehyde and 4-trifluoro- methylaniline was carried out in one pot by means of adopting three kinds of green synthetic methods, microwave irradiation, ionic liquid and free solvent-catalyst condition. According to the results, the synthetic method was optimized without catalyst and solvent at 100 ℃ and 15 min, and it was economic, convenient, high yields, timesaving and environment friendly.

采用微波辐射﹑离子液体和无溶剂无催化剂三种绿色合成方法，分别进行了以亚磷酸酯、邻氟苯甲醛和对三氟甲基苯胺为原料的类Mannich一锅法合成反应研究，经合成筛选，优选出控制反应温度100 ℃、无溶剂和无催化剂加热反应15 min的合成方法，实验结果表明该方法经济、简便、产率高、反应时间短及对环境友好。

The microcapsulated Na dichloroisocyanrate is a kind microbicide .its applications in detergent powder was studied,the microbicidal functions and Stability of mierocapolated Na dichloroisocyanrate was proved scientificaly. The formulas of detergent powder are selected.

本文研究了微胶囊化优氯净作为高效杀菌剂在洗衣粉中的应用，科学地考察了微胶囊化优氯净的杀菌机理和稳定性，且优选了洗衣粉配方。

Following aspects are specially discussed:(1) In-situ study on the mechanism and the rate determining step of corrosion processes at the interface between metal and corrosion media;(2) Reliability of structures in corrosive environment;(3) In-situ non-destruction corrosion inspection, evaluation, repair and maintenance of engineering structures;(4) A new approach for material selection-life cycle costs, LCC;(5) Terotechnology;(6) Corrosion protection and environmental protection;(7) microbiologically influenced corrosion;(8) Computer aided design of corrosion protection;(9) Corrosion and protection of reinforced concrete structures;(10) Corrosion and protection of marine structures;(11) New development of coating and corrosion inhibitor etc.

论述了腐蚀科学与防护技术几个值得注意的发展动向，它们包括：(1)金属／腐蚀介质界面反应及其快速步骤的原位研究；(2)在腐蚀环境中结构的可靠性；(3)腐蚀的在线无损检测／评价和设备的维修保养；(4)材料优选的新方法－LCC；(5)防护系统工程学；(6)腐性防护与环境保护；(7)微生物腐蚀；(8)腐蚀防护的计算机辅助设计；(9)钢筋混凝土结构的腐蚀防护；(10)海洋工程结构的腐蚀防护；(11)防护涂层和缓蚀剂的新发展等。

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。