2的例句大全

Then the molecular imprinted polyethyleneimine on the surface of silica gel was prepared using Cu~ 2+ as template ions and epichlorohydrin ( ECH) as crosslinking agent via coordination bond effects, and composite ionic imprinted material IIP-PEI/ SiO_2 was obtained.

以Cu2+为模板离子，以环氧氯丙烷为交联剂，通过配位键作用，对化学键合在硅胶表面的PEI大分子链进行了离子印迹，制备了复合型Cu2+印迹材料IIP-PEI/SiO2；

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The Lower Estimate on n-Widths of Some Periodic Convolution Classes in L_ ( 2 π) Space

某些周期卷积类在L（2π）空间内宽度的下方估计

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Based on it, semiformal process integration modeling techniques are researched. 2.

以此为基础研究半形式化的过程集成建模技术。

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Analysis of cracks in reheater steam conduit of boiler type DG1025/ 18.2 and corresponding countermeasures

DG1025/18·2型锅炉再热器导汽管裂纹分析及对策

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Rats were stimulated by repeated electric foot-shock combined with noise from a buzzer to establish conditional reflex, receiving stress twice daily, 2 hours per time, and the treatment lasted for 15 days.

方法：采用足底电击结合噪音方法刺激大鼠，每日2次，每次2小时，连续应激15天；

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Results show: the bridge is in a smooth line shape and mechanical condition. 2.

结果表明：桥梁线形平顺，受力状态良好。

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To non-Newtonian fluid ( 2% CMC) system under torrential flow experiment condition, when the reaction heat is under 10kW/ m3, the system can be stabilized above 30 ℃ reaction temperature state by three heat pipes whose condensing apparatus are cooled by air nature;

对于非牛顿流体（2%CMC）体系，在湍流状态下，在反应热小于10kW/m~3时，采用冷凝端为空气自然冷却的三根热管完全能使体系稳定在30℃以上反应温度的条件；

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Determinations at boll stage showed that the content of condensed tannin in calyx, boll shell and leaf was rather high, generally up to 5~ 10%, while that in petal, stigma, ovary and inner boll was lower ( about 2%).

在棉花各个组织中，花萼、铃皮和叶片缩合单宁含量较高，陆地棉中一般达5%～10%；花瓣、花柱子房和铃心中含量较低（2%左右）。

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Proposes remote sensing phantom division algorithm based on the condensation level cluster, and applies it into the maximum outflow boundary line-spacing bay bottom distance extraction and carries on the parameter optimization to the existing ice water recognition methods. 2.

论文的主要工作包括：1.将基于凝聚层次聚类的遥感影像分割算法应用到海冰外缘线提取上；对现有冰水识别方法进行参数优化。

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Comparison of 2 Design Schemes for Position of Condensate Blowdown Pipe

凝结水系统排污管位置2种设计方案的比较

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Results: For 114 cases, the remission rate of cervical vertigo was 96.2% and the effective rate was 100% to concomitant symptom and physical sign.

结果：114例获随访结果，颈性眩晕症状缓解率96.2%，伴随症状及体征有效率100%。

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Apply the prototype category theory to investigate the category member constitution and status change of "Xu"& "Shi" conceptual category. 2.

运用原型范畴理论等考察虚实范畴成员构成与成员地位的变化。

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This paper analyzes the cause of producing small concave around weld seam according to practice of welding long rail in Guangzhou Metro Line 2, and presents the preventable measure to overcome.

本文结合广州地铁二号线接触焊焊接长钢轨实践，分析了焊缝热影响区产生轨面小凹痕的原因，提出克服此类缺陷的预防措施，可供类似工程借鉴。

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Both one dimensional and two dimensional pseudo-homogeneous models have been used in the machine computation of the adiabatic fixed bed reactor for the dehydrogenation of ethylbenzene to styrene. The result of computation, was compared with plant data and the relative error is only 1~ 2%.

本文用拟均相一维和二维数学模型对乙苯脱氢制苯乙烯绝热式固定床反应器进行电算，并与现场数据进行了对比，计算结果与现场实测数据的相对误差仅为1～2%。

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Recently we have prepared large amount of purified pEH 920 DNA which is inserted by complementary DNA of dengue virus 2 RNA.

新近制备了大量纯化的pEH920DNA，该质粒DNA插入了登革病毒2型核酸片段的互补DNA。

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Coal-bed methane accounts for about 2 % of the world's natural-gas supply.

煤层气约占世界天然气供应的2%.

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The electrophoresis results of RAPD showed that 12 primers produced 96 bands with molecular weight ranged 350~ 2 000 bp and the shared bands was 17 with polymorphism rate of 82.29%. This showed the rich genetic diversity of the Chinese Shar-pei in its origin place.

筛选出的12个重复性、多态性好的随机引物，扩增出96个位点，分子量在350~2000bp，共享带数为17条，多态性82.29%，说明沙皮犬存在丰富的遗传多样性。

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Homeland radius of action: The radius of action for aircrafts that take off from and back to the homeland, i.e. about 1/ 2 of its maximum flying range.

本土飞行半径：战机出发后，再返回出发地的最大飞行范围。即约为战机最大飞行距离的二分之一。

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Objective To explore the diagnostical value and change of serum β 2 microglobulin in digestive diseases.

目的探讨血清β2-微球蛋白（β2-Microglobulin，β2-MG）在消化系统疾病中的变化水平和诊断价值。

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Experimental results show that the algorithm can greatly reduce the misclassification rate. 2.

实验结果表明，所构造算法可有效降低文本图像识别检索的误识率。

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