超声波

This paper summarizes the development and foundational principle of ultrasonic detections. Then it presents the theory and characters of ultrasonic sensor.

论文概述了超声检测的发展及基本原理，介绍超声波传感器的原理及特性。

Experimental results and theoretical analysis shows that it isentirely possible to ultrasonic achieve a short distance transmission in downhole.

实验结果与理论分析一致表明利用超声波作为信号载体，并借助泥浆介质在井下实现短距离传输是完全可能的。

Effect of toxicant, microcystin, different solvents, ultrasonic treatment time and eluants on the extraction efficiency of microcystis aeruginosa was studied. Conditions of gradient elution and HPLC separation of the toxicant were also optimized.

以铜绿微囊藻为研究对象，考察了不同溶剂、不同超声波震荡时间和不同固相萃取洗脱液浓度对藻毒素提取效率的影响，以及梯度淋洗HPLC分离藻毒素条件的优化。

Studies on the effect of eluting time,temperature and ultrasonic on elution rate are carried out and X-ray fluorescence are used in analysis.

针对硫酸溶液可以有效洗脱树脂上的氰化物和锌，但不能洗脱铜的工艺问题，选择氨水溶液对酸洗后201×7树脂上的铜进行解吸；试验研究了解吸过程的时间、温度以及超声波作用等条件对解吸率的影响，并进行了X射线荧光分析。

The company was equipped with many kinds of equipments including: the Direct-Reader Spectrograph, Magnetic particle inspection and Ultrasonic testing, the Hydraulic Universal Testing Machine with Computer-Screen Display. Pendulum-lmpact Testing Machine, Large Metallographic Microscope, and Large vertical lathe, Mobile Face Milling Machine ect. The measurement, precision, the surface finish, property and the internal quality of the steel castings and the ductile irons are all company with national and international standards.

公司铸钢车间采用呋喃树脂砂造型工艺、电弧炉+LF精炼炉炼钢、抛喷丸表面处理、煤气热处理炉热处理，配备有德国康诚直读式光谱仪、磁粉探伤及超声波探伤、微机屏显万能材料试验机、冲击试验机、金相显微镜等检测设备和大型立车、移动式端面铣床等加工设备，铸件尺寸、精度、表面光洁度、机械性能和内部质量均符合国家和国际标准。

The car's ultrasonic sensors check for obstacles, and software starts and stops the engine, controls the brakes and hazard-warning flashers, and folds the wing mirrors in and out.

车上配置的超声波传感器对路障进行勘测，控制软件对发动机的运行和停止进行控制，同时控制着制动和事故报警闪鸣器的开启，伸展和收缩后视镜。

Our main equipments are one NB-1000 belt continuous brazing furnace, one box brazing furnace, one ultrasonic cleaning machine,, two rolling machines, one dewinger, two pipe cutters, six core installing machines, one flat tube wing installing machine, one flat tube flatting mill, one plate transfer line, one water riveting machines, one set of screw compressor, four argon welders, six sets of core missing check desks and final missing check desks, one wringing machine, one final baking furnace and one bag machine, etc.

我公司主要设备有NB-1000网带连续式钎焊炉一台、箱式钎焊炉一台、超声波清洗机一台、滚带机二台、冲翅机一台、割管机二台、装芯机六台，扁管装翅机一台、扁管压平机一台、板式输送线一台、水室铆压机二台、螺杆式压缩机一套、氩弧焊机四台、芯子检漏台及总成检漏台六台套、甩干机一台、总成烘干炉一台、打包机一台等。

The purpose was to study the technology of extracting total flavones from Persimmon leaves by ultrasonic wave.

研究超声波提取柿叶中总黄酮的工艺。

The paper establishes an appropriate model of vibration system composed of horn and gear. The transmission of ultrasonic is changed from longitude wave into transverse wave; the gear vibrates in flections mood and obtain larger vibration displacement in the grinding region.

本文提出了一个适用的振动系统模型，由变幅杆和齿轮组成一个复合振动系统，将超声波的传递方式，由纵波变为横波，齿轮作圆盘弯曲振动，使齿轮的磨削区域得到较大的振动位移。

These distinctions have probably been brought about because of the need for simple classifications of ultrasonic flowmeters in the industry.

这些区别可能已经被带来，因为超声波流量计的简单分类，在业界的需要。

This one mode pays close attention to network credence foundation of the businessman very much.

这一模式非常关注商人的网络信用基础。

Cell morphology of bacterial ghost of Pasteurella multocida was observed by scanning electron microscopy and inactivation ratio was estimated by CFU analysi.

扫描电镜观察多杀性巴氏杆菌细菌幽灵和菌落形成单位评价遗传灭活率。