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The World is certainly a great and stately Volume of natural Things; and may be not improperly styled the Hieroglyphicks of a better: But, alas!

这个世界的确是伟大而庄严的自然画卷;也许没有不恰当的设计出象形文字更好:但,天!

Several breakthroughs in optical systems were the work of physicist and mathematician Ernst Abbe.

作为物理学家和数学家,Ernst Abbe设计出许多突破性的光学系统。

At the same time, those design indexes is realized well by means of selecting superior performance electronic apparatus abortively. Because of a great deal of digital EEG data and the demands on real-time display and synchronous data acquisition, a kind of multi-channel synchronous data acquisition system is

由于数字化的脑电信号数据量大,为满足实时显示以及同步采集脑电信号的要求,设计出了基于双端口和USB通讯接口的多通道同步数据采集系统,使脑电图仪与微机之间进行高速、可靠的数据传输成为可能。

Three diagnostic criteria for diagnosing AMI were designed, namely cTnⅠ+Myo, cTnⅠ+ H-FABP, and cTnⅠ+H-FABP+Myo. Diagnostic accuracy rating of the three criteria was then calculated and compared. Results Accord- ing to the ROC curves, the cut-off values of the three biochemical markers for diagnosing AMI were defined as follows: Cut-off cTnⅠ 0.5ng/ ml, Cut-off Myo 90ng/ml, and Cut-off H-FABP 5.7ng/ml.

绘制3种标志物诊断AMI的受试者工作特征曲线并确定其最佳cutoff 值,对设计出的3种诊断AMI的心肌标志物组合试验(cTnⅠ+H-FABP、cTnⅠ+Myo、cTnⅠ+Myo+H-FABP)的诊断准确度指标进行比较。

This system can stably achieves the dependable access and rapid acquirement of data.

设计出的系统能稳定地实现数据的快速获取与给定。

He has designed an adjustable ''.

他已经设计出一种可以调整的''。

First, this paper briefly presented the construction of the software and hardware system of the ATE8000- 1 integrated test stand, and the monitoring circuit designs of alternating current power supply used voltage for this test stand.

文中首先简要介绍了ATE8000-1综合测试台系统的软硬件结构和总体方案,设计出了该测试台交流电源输出电压的监控电路。

Finally, based on the perspective of credit information flow in B2C e-commerce, this text design a the defensive mechanism of credit risk that centered on transmission mechanism of credit information, assisted by on-line credit service mechanism and guaranteed by credit supervision mechanism, and brings forward the assumption and measures about concordance of e-market's operations and institutions, pricing of on-line credit service, the supervision and amercement.

在此基础上,本文从信用信息在B2C电子商务交易中的流动过程角度考虑,设计出以信用信息传递机制为核心,在线信用服务机制为辅助,信用监管机制为保障的B2C电子商务信用风险防御机制,并提出电子市场业务与机构的整合、在线服务的定价、监管体系的力度、违信惩罚的传递等具体运行措施的建议和设想。

The invention that resulted, the first reliable machinegun , was better at killing than anything devised by man before.

而最终研发出的枪械(世界上首个可靠的机关枪)比人类以前设计出的任何武器都更具杀伤力。

The main research work of this dissertation is as follows: Based on the chemical reaction engineering theory and the nitrobenzene electroreduction mechanism, the plate and frame electrolyzer was designed and applied to the process of electroreduction nitrobenzene to p-aminophenol. This dissertation measured the residence time distribution data of the electrolyzer by means of the pulse response method and studied the rule of flow pattern along with the current capacity change. Under different conditions ,this dissertation studied the cyclic voltammetry properties of nitrobenzene on different electrodes by means of the dynamic cyclic voltammetry method and the electrode materials applied to the NB electroreduction have been selected primarily.Baseed on the results of cyclic voltammetry tests, this dissertation used p-electrode systems to measure the steady-state- polarization curves of nitrobenzene on different electrodes in H-type diaphragm cell, and obtained each primary factor s influence rule and the exchange current density value of each electrode.And then on the basis of the conclusions of fundamental researchs upword, the effects of influence factors on the the yield of p-aminophenol and the current efficiency,such as electrode material, current density, quantity of electricity circulated, nitrobenzene concentration . sulpuric acid concentration and so on, have been studied in detail in the systems of hign temperature , strong acidity and oxygen-poorthrough a series of electrolysis experiments in this paper.After all using Pb as anode Monel metal as cathode Dupont Nafion 417 cation-exchange membrane as membrane, this dissertation obtained the optimum technological condition: reaction temperature about 85C, current density 500A m-2, sulphuric acid concentration 20%wt.

论文的主要研究工作为:运用化学反应工程理论,结合硝基苯的电还原机理,设计出用于硝基苯直接电还原合成对氨基苯酚实验的板框式电解槽,并利用脉冲响应法测定了该板框式电解槽的停留时间分布数据,研究了流型随流量变化的规律;通过动态循环伏安法研究了硝基苯在不同电极上、不同条件下的循环伏安特性,初步评选出了用于硝基苯电还原的电极材料;结合循环伏安的测定结果,在H型隔膜电解槽中采用三电极体系测定了硝基苯在不同电极上、不同条件下的稳态极化曲线,得到了各主要因素的影响规律及硝基苯在各个电极上电还原的交换电流密度数值;在基础研究结论指导下,采用板框式电解槽,在高温、强酸、贫氧系统中,进行了一系列的电解实验,分别考察了电极材料、电流密度、通电量、硝基苯浓度、硫酸浓度等因素对收率及电流效率的影响,最终选择以蒙乃尔合金电极作为阴极、铅合金为阳极、Dupont Nofion 417阳离子交换膜为隔膜,得到由硝基苯直接电还原制对氨基苯酚的最佳电解工艺条件:反应温度85℃,电流密度500A·m~(-2),硫酸浓度20%wt。

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推荐网络例句

The reasons of iron ions content overproof in grade Ⅱ desalting water system,such as variation water quality,contamination of regenerant , operation adjustment of pretreatment system and switching operation of bed were discussed.

对二级脱盐水系统中铁离子含量超标的原因,如来水水质发生波动、再生剂受到污染、预处理系统操作调整、床体运行切换等进行了论述。

You were hired to drum up new business, so go and do it.

公司雇你招徕新业务,你就做你的事好了。

Who is in possession of this?

这是谁的?