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Using the readily available optically active propargylic amines, the corresponding -α-chloroalkylidene-β-lactams with high ee values can be synthesized conveniently.

同时我们实现了由光学活性的炔丙基胺一步法生成光学活性的β-内酰胺化合物，这不仅在学术上而且在工业合成上都将具有非常重要的意义。

This thesis mainly focuses on overcoming the substrates limition of the present catalytic systems,low catalytic efficiency,and application in total synthesis.1.Conveniently synthesized sulfonamide alcohol titanium complex has been used to catalyze the asymmetric addtition of methyl propiolate to various aromatic and aliphatic aldehydes with high enantioselectivity.

本论文即针对现有催化体系的底物局限性、催化效率低、应用研究少等展开研究：1、我们将简便合成的磺酰胺基醇配体-钛催化体系应用于催化丙炔酸甲酯对各类芳香醛及脂肪醛的不对称加成取得了理想的结果。

Said invention can conveniently supply oil required for lubrication between the supporting surface of the crankshaft and truss surface of machinef rame to minimize wear and prolong the service life of compressor.

本发明能方便向曲轴的支撑面和机架的桁架面之间供应润滑所需的油，使润滑顺畅，降低驱动负荷，磨损降到最小，可延长压缩机的使用寿命。

LP Recco PCR Cloning can efficiently and conveniently construct high quality prokaryotic expression vector of human NY-ESO-1 gene, which provide the expression vector to produce pET-15b-NY-ESO-1 fusion protein.

靶向克隆法可快速、高效地构建人NY-ESO-1基因的原核表达载体，为制备pET-15b-NY-ESO-1融合蛋白奠定了基础。

Rememberable oscillograph can be used to watch the waveform of a transient respondence of a L and C circuit conveniently.

本文介绍将普通示波器加装单片机之后，变为一记忆波器，可以很方便的用来观察L、C电路暂态响应的波形，而普通示波器是难以实现的。

Reperformance test of WBC and detection of abnormal leukocyte were perfect. Conclusion: 5300 automated hematology analyzer with stability and fine quality control is calibrated conveniently. It also had excellent linearity and lower carryover so that it is rapid and efficiently to test CBC and DC in large quantities.

迈瑞5300血细胞分析仪校准方便，质量控制良好，稳定性高；线性检查理想；携带污染率非常低，对大批量的全血细胞计数和白细胞分类计数能进行快速和有效的筛检。

Meanwhile we measured the skeletal classⅢocclusion and mandibular retrusion patients by traditional cephalometric analysis and the Delaire cephalometric analysis. We discovered the Delaire cephalometric analysis was more accurately and conveniently. This method can help us to understand the cranio-maxillo-facial structure compensatory mechanism of the skeletal classⅢocclusion and mandibular retrusion patients, which can provide reference for diagnosis, project and orthodontic treatment.

同时，传统头影测量方法与Delaire头影测量分析法对骨性Ⅲ类与青少年下颌后缩畸形行测量，发现Delaire头影测量分析法更直观、定量，利于明确骨性Ⅲ类错牙合与青少年下颌后缩畸形颅面骨骼结构补偿机制，更易辅助正畸诊断、设计，也为相应的临床治疗方法改良提供依据。

Network freedom interacts to spread way conveniently, study brought the life recreation that gives people to change revolutionarily.

网络自由互动便捷的传播方式，给人们的生活娱乐学习带来了革命性的变革。

It also may conveniently get every factor's affect. This method provides a sciential tool for contr...

该方法还可以方便地判断出各风险因素所起的作用的大小，为控制项目主要风险提供了一种科学的方法。

Iron abduct plum see this kind of circumstance, those who feel this group of spadger are true is too those who do is too too mischievous, beyond the mark, conveniently comes from a Shan Teng, the peculiar magic arts in exert the Eight Immortals in the legend, the He Qiao that eats those stealthily is bound together entirely, and still them a string hang up in the tree, let those birds fly in the Pure Brightness around of temporary shortage definitely only.

铁拐李看到这种情景，觉得这群麻雀真的是太过顽皮。做的太过分了，便随手从山边址下一条山藤来，使出八仙中特有的法术，把那些偷吃的禾雀全部捆绑在一起，而且还把他们一串一串的挂在树上去，只准让那些鸟在青黄不接的清明前后飞出来。

World War II: Battle of Saipan - Americans take Saipan.

1944年的今天，美国在塞班战役中拿下塞班岛。

When the scorner, the rejecter of truth, has become presumptuous; when the routine of work in the various money-making lines is carried on without regard to principle; when the student is eagerly seeking knowledge of everything but his Bible, Christ comes as a thief.{DA 635.3

当讥诮和拒绝真理的人，到了任意妄为时，当追求财利者罔顾按道义经营谋利时，当学人正在兢兢业业地研究各种知识，而单把圣经丢在一边时，基督要像贼一样来临。