Feature Extraction on AR Model About Ultrasonic Testing of Liquid Signal

Through two methods measuring cutoff thrust and pressure of com-bustion chamber when testing liquid propellant rocket engine on ground, cu-toff impulse as simulated altitude condition is obtained. These methods are revie-wed simply, too.

本文叙述在地面条件下试验液体火箭发动机时，通过测量发动机后效段推力与测量发动机燃烧室压力两种方法来求得模拟高空后效冲量，并对这两种方法作简单评论。

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In accordance with the existing state of the tested composition in tobacco leaves, the pre-treatment for the routine method was improved and the same testing liquid was established for determining the content of nicotine, potassium and chlorine.

依据被测成分在烤烟烟叶中的存在状态，对常规方法的前处理进行改进，建立同一待测液，同时测定烟叶样品中烟碱、钾和氯的含量。

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The quality of such raw material as silica gel, absorption column, fluorescent indicator when testing liquid petroleum products group with FIA is analyzed and the its effect on the analysis result is indicated.

通过对FIA法测定液体石油产品族组成分析中所用的原材料如硅胶、吸附柱、荧光指示剂等的质量进行分析，指出了其对分析结果的影响；

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The sensitive unit is made by welding naked optical fiber. Inserting it into testing liquid, loss of light intensity is measured and the liquid concentration is known directly.

利用光纤熔接机制作光纤敏感元件，将其插入待测液体，通过测量出射光强，实现对液体浓度的直接测量。

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Vertical wicking measurement is one important way of testing liquid transfer properties of textiles, but dynamic transfer of liquid makes it difficult to read figures in a split second.

垂直芯吸法是测试织物湿传递性能的重要方法之一，但在实际应用中由于液态水的传递是一个动态传递过程，瞬间读数存在困难，采用图像处理技术能较好地解决这一问题。

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Objective: To examine the possible influence of fine-even extent of testing liquid on bacteria number in micro-organism limiting test.

目的：考察微生物限度检查中供试液中的细匀程度对细菌数测定有无影响。

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Influence of Fine-Even Extent of Testing Liquid on Bacteria Number in Micro-organism Limiting Test

论述微生物限度检查中供试液的细匀程度对细菌数测定的影响

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Result; The fine-even extent of testing liquid significantly influenced bacteria number.

结果：在研磨法和振荡法中，供试液的细匀程度对细菌数测定均有显著影响。

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In case of new equipment, testing liquid is supplied in its membrane room to prevent.

如果是新设备，在新设备的隔膜室中装有测试液以防锈蚀。

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Method of testing liquid viscosity

一种液体粘度的检测方法

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A model 8500 bar code reading system is one of the 8000 series products produced by the MRC Co. in U. S. A, it was adopted on an automatic engine testing line in FLINT Engine Plant of General Motors in early of 1980s.

8500型条码阅读系统是美国MRC公司生产的8000系列产品之一，80年代初应用于美国通用汽车公司FLINT发动机厂的自动试车线上。

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Slab ballastless track is one of the commonly used forms of the ballastless track in our country, the design and construction technology is more mature, have paved the testing line in the Qinhuangdao-Shenyang PDL and Suining-Chongqing railway.

板式无砟轨道是我国无砟轨道中常用的结构形式之一，设计施工技术都较为成熟，在我国秦沈客运专线、遂渝线铺设了试验段。

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The basic GPR principle, the detection equipment to be adopted, the detection basis, frequency and testing line layout for general detection content, the radar parameters setting standard, the procedures of detection and data processing will be described.

将介绍探地雷达的基本原理和拟采用的检测设备，隧道质量常规项目的检测依据、频率与测线布置，雷达参数的设定准则，检测步骤与数据处理过程。

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In this context, working on analysis and classification with the track structure disease and maintenance experience in this paper, which arising from ballastless track testing line of two railways in a few years of operations, is very important.

在这样的背景下，本文对两条铁路的无砟轨道试验段在数年的运营中所出现的轨道结构病害以及养护维修经验进行总结归类、分析梳理。

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Analyses the character of each electric point on the testing line, and propose the method of researching intelligent diagnosis device of the electromechanical devices, in order to promote the intelligent of the technique maintenance of testing station.

系统地分析了检测线机电设备各电气节点的特征，提出了对于检测线机电设备电气故障智能诊断仪的开发构想，使检测站的技术维护也达到一定的智能化程度。

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This paper designs a supervision and control system for mobile testing line based on an access Ethernet module, and describes the module in detail. It analyzes its TCP/ IP clipping and its MCU working process.

文章设计了一种基于Ethernet接入模块的机动车安全性能检测线监控系统，对开发的Ethernet接入模块进行了详细介绍，根据工业测控现场实际，分析了该模块TCP/IP协议剪裁和单片机工作流程。

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The application analysis of electromagnetic detection instrument in casing damage in JS oilfield In the light of the shortcomings of the existing tubing magnetic testing line, a new magnetic testing apparatus is developed.

电磁探伤检测仪在江苏油田套损检测中的应用分析针对国内现有油管磁性探伤检测线的不足，研制了新型油管电磁探伤装置。

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For the safe operation of urban vehicles under regenerative braking working condition on testing line, the energy absorbing equipment is required to suppress over-voltage.

城轨试验线因列车实际安全运行需要必须有能量吸收装置进行再生制动直流网压过压抑制。

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The inspecting and testing line is the key facility of the station, in this paper the calculation method of several parameters for the line is described in detail.

检测线是检测站的主体，本文详细介绍了汽车检测线部分参数的计算方法。

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An Intelligent Detector for the Dedicated Pressure Gauge of Rolling-Stock; With a private testing line, testing train and detecting equipments.

铁路机车车辆专用压力表智能检定装置有一条专用铁路试验线，试验车辆及测试设备。

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