超声波的

Custom Ultrasonic Tanks: When the part size or configuration requires a special-sized ultrasonic cleaning tank, Greco Brothers employs immersible transducers,.

定制超声波清洗槽：当部件尺寸或者配置需要特殊尺寸的超声波清洗槽时，Greco Brothers采用浸水式变换器。

During the extracting process, three main factors including ratio of solid to liquid,ultrasound power and ultrasound extracting time were studied by using single factor analysis method .

在提取过程中，通过单因素法分析了几个主要因素：料液质量比、超声波提取功率及超声波提取时间对提取率的影响。

Various kinds of hot plasticity melt and receive and deal with with ultrasonic wave and need and add flux, splicer pharmaceutical or other to assisted and sampled by glue one.

超声波焊接是熔接热塑性塑料制品的高科技技术，各种热塑性胶件均可使用超声波熔接处理，而不需加溶剂，粘接剂或其他辅助品。

Based on experimental results for conventional ultrasonic creeping wave,straight beam probe,small angle longitudinal wave,micro-paralleling creeping wave,an approach is proposed to select small angle longitudinal wave and micro-paralleling creeping wave to detect strut porcelain insulator.The choice of ultrasonic apparatus,probe and test block,the adjustment manner of working sensitivity and sweep speed,the principle of decision defect are presented.

在总结分析传统超声爬波法、横波法、普通直探头法、小角度纵波斜探头法和微型并联爬波法等几种常用的支柱瓷绝缘子超声波检测方法优缺点的基础上，通过试验分析了采用小角度纵波斜探头结合微型并联爬波探头对支柱瓷绝缘子进行超声波检测的工艺方法，确定了用该法对瓷绝缘子进行超声波检测的仪器、探头和试块的选用，探伤灵敏度和扫描速度的调整方法以及缺陷判定的原则。

With piezoelectric transducer, and AT89C52 one-chip computer as controller, design of software and hardware for ultrosonic telemeter is finished.

采用压电式超声波换能器，使用AT89C52单片机作为控制器，完成了超声波测距仪的软硬件设计。

After centrifugation, the extracts were separated on HILIC column by using acetonitrile-water as mobile phase. The analytes were identified and quantitated by LC-tandem MS under the positive/negative electrospray ionization and multiple reaction monitormode. The calibration curves showed good linearity in the range of 25-5000 μg/kg for melamine and cyanuric acid, and 50-10000 μg/kg for ammeline and ammelide. The limits of detection and limits of quantification were in the range of 5-20 μg/kg and 50-100 μg/kg, respectively.

牛奶样品直接用乙腈超声波提取；奶粉样品先用水溶解后再加乙腈超声波提取，高速离心后以乙腈－水为流动相，采用亲水作用色谱柱分离这4种化合物，在电喷雾正、负电离切换多反应监测模式下进行定性与定量分析，三聚氰酸一酰胺与三聚氰酸二酰胺含量在50~10000μg/kg之间、三聚氰胺与三聚氰酸在25~5000μg/kg之间，均获得良好的线性。

ObjectiveTo develop an extraction process of organic acids from Capsella buras-pastoris by ultrasonic extraction.

方法采用单因素实验/正交实验，研究了温度、超声波作用时间、料液比、超声波功率对荠菜中有机酸提取量的影响规律。

The experimental results showed that the existence of ultrasound could decrease the formation potential of ferrate and the passivation extent of iron anode, as well as O_2 evolution rate, which led to higher current efficiency for the direct electrosynthesis of solid ferrate at 65℃in 14 mol/dm~3 KOH solution.

通过对超声波对纯铁电极电化学行为影响的研究表明，超声波能加快电极表面上的固体K_2FeO_4向本体溶液中的转移和延缓电极表面的钝化，还能减慢O_2析出的速度，这可能就是超声波作用能够提高固体K_2FeO_4生成的电流效率的原因。

4 Results of nondestructive test for weld joints shall be graded according to JB 4730. Following requirements shall be met: a For radial test, quality grade of radial transillumination can't be lower than Grade AB, and that of weld joints shall meet table 10; b For supersonic test, approval standard for weld joints are as follows: 1 For weld joints of 100% supersonic test, grade Ⅰ. 2 For weld joints of local supersonic test, grade Ⅱ. c For magnetic particle test and penetration test, grade Ⅰ.

7.5.4 管道焊接接头的无损检测应按 JB 4730 进行焊缝缺陷等级评定，并符合下列要求： a 射线检测时，射线透照质量等级不得低于 AB 级，焊接接头经射线检测后的合格等级应符合表 10 的规定； b 超声波检测时，管道焊接接头经检测后的合格标准如下： 1 规定进行 100%超声波检测的焊接接头 I 级合格； 2 局部进行超声波检测的焊接接头 II 级合格； c 磁粉检测和渗透检测的焊接接头 I 级合格。

The independently designed and produced series ultrasonic aluminum wire press welder, series ultrasonic gold wire ball welding machine, series ultrasonic large wire press welding machine shows the outstanding talents and the meticulous pursuit of our engineers, and our professional standard and rich and rich experience in microelectronic welding technology, it also means the development milestone of domestic semiconductor component interior wire welding equipment.

深圳市创唯星自动化设备有限公司是一家专业从事半导体封装设备研发、制造和销售的高新技术企业。公司整合了伟天星精密机电、微迅自动化两公司的研发、制造、销售的菁英，成立了创唯星公司。我们自行研发、制造的系列超声波金丝球焊机、系列超声波铝丝压焊机、系列超声波粗铝丝压焊机、系列LED自动点胶机等设备，处於国内领先地位，加上我们的价值服务，得到了广大客户的肯定和大力推荐。

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。