查询词典 ultrasonic wave

The company introduces internationally advanced ultrasonic technology and production technology, produce more than ten series, over one hundred kinds of single rabbet, multi-rabbet, gaseous phase, full-automatic ultrasonic wave washing machine with environmental protection and the washing equipment of non-standard type; and more than 10 kinds of standard, non-standard ultrasonic plastic welding machine, metal welding machine, ultrasonic average instrument, ultrasonic extracting instrument,etc.

公司引进国际先进的超声波技术和生产工艺，生产十多个系列、百余种规格单槽、多槽、气相及环保全自动超声波清洗机和非标清洗设备；以及十多个规格的标准、非标型超声波塑料焊接机、金属焊接机、超声波均化仪、超声波萃取仪等。

On the basis of investigating the sound field of a plane piston transducer and the relations between sound field and radiation force, by settling four plane piston transducers driven at the same frequency at each corner of a regular triangular pyramid with their sound-beam axes crossing at the center of the pyramid, this technique uses ultrasonic wave synthetic theory to acquire a three-dimensional ultrasonic standing wave field. The micro-component can be captured, transported, released in the range of space by adjusting the phase of the transducers.

在研究单个圆形平面活塞换能器声场分布以及声场和辐射力关系的基础上，将以相同频率驱动的4个平面活塞换能器呈正四面体放置，利用声波合成原理获得三维超声驻波场，通过调整各个换能器发射信号相位之间的关系实现对微构件在空间范围内的俘获、移动、释放等操纵。

The cleaning machine for ultrasonic wave capillary viscometer works by means of the cavitation of ultrasonic wave in liquid.

超声波毛细管粘度计清洗机是利用超声波在液体中的空化作用来完成的。

When form solid film, cavitate bladder blow up in ultrasonic power, bring thousands K high temperature in the thumbnail time and the thumbnail spare, go with strong bow wave and mirshoot flow, it can intensify the process of mass transfer, so reaction rate with ultrasonic wave have higher than without ultrasonic wave.

固态膜形成后，在超声波作用下空化泡崩溃，在极短时间内和极小空间中产生几千K的高温，伴生强烈的冲击波和微射流，强化传质过程，因此在超声波作用下磷矿的分解率比无超声作用时的分解率高。

Changes in Xc for different pulp cellulose fibers are not the same during the ultrasonic treatment. Crystallization and decrystallization may both exist during the treatment at the conditions of lower-intensity ultrasonic wave. After treatment with ultrasonic Xc of MBKP cellulose is decreased and that of EBKP is increased. The changes of Xc of different pulp cellulose are more closely correlated to the fibers' morphology size and the cavitation state. The maximum Xc of 84% is obtained when BEKP cellulose is treated under the conditions of ultrasonic frequency f=23-25kHz, power=400w, and treatment time t=720s.

不同原料来源的纤维素纤维，由于形态尺寸和超分子结构的差异，经超声波处理后超分子结构表现出不同的变化规律；超声波处理过程中，结晶和消晶两种作用同时存在；超声波功率对纤维素的结晶度有较大的影响，对晶体尺寸有一定程度的影响，但结晶度Xc与超声功率没有线性关系；在频率为23-25kHz，功率为400W条件下，对桉木漂白浆纤维进行超声波处理，可获得高结晶度（84%）的纤维素样品。

Methods Percutaneous nephrolithotomy guide by ultrasonic wave.Results The patients who have stone in their kidney and up ureter.We use PNL guide by ultrasonic wave,the effect is good,especially both side of kidney stone,deerhorn stone,loney kidney stone and relapse stone after operation.

结果 我院对肾、输尿管上段结石施行B超引导经皮肾镜取石术，效果满意，尤其对双侧肾结石、鹿角状结石、孤立肾结石及手术后复发肾结石等各复杂肾结石患者，效果良好。

The Application of Ultrasonic Wave to Medicative Abortion;2. Optical fiber ultrasonic wave monitoring based on Mach-Zehnder interferometer;3. In this paper,the extraction of grape seed proanthocyanidin using ultrasonic wave was studied.

对葡萄籽中原花青素的超声提取工艺进行了研究，在单因素实验和正交实验的基础上，得出超声波法提取葡萄籽原花青素的最佳工艺条件为：在40℃下，以料液比为30：1的40%乙醇溶液，用120W的超声功率对葡萄籽作用10min。

In the extracting process using ultrasonic wave, the preferable technical parameters of extracting polyphenols from the root and stalk of sanguisorba were acquired by changing the particle size of raw material, the ratio of sample weight to solvent volume, ultrasonic time, ultrasonic power, ultrasonic times.

在超声波法浸提过程中，通过调节料液比、原料粒度、超声时间、超声功率、超声次数因素的影响，确定了地榆根和茎中多酚较佳超声浸提工艺参数。

A mathematical model of the relation between ethanol concentration, solid-liquid ratio, time of ultrasonic wave and the extraction ratio of polyphenol in oil-tea seed residue has been established by means of quadratic general rotary unitize design and ultrasonic wave cooperated method.

采用二次通用旋转组合设计试验方法和超声波辅助提取工艺方法，建立了乙醇浓度、料液比、超声时间与油茶籽饼多酚类物质提取率之间的数学模型，绘制了单工艺参数、双工艺参数与多酚提取率之间的函数图像，得出了多酚类物质提取的最佳工艺。

In the process of building and using the mass concrete structures, because of the effect of out-side condition and themselves, some faults will form in the structure, these faults will effect the bearing capability and endurance Using nondestructive testing method to test the concrete"s quality and diagnose its healthy, which has the significant sense in assessing the safety stability and research of the administering diseasesThis dissertation mostly researched the testing methods in the mass concrete structure, discussed the principles, methods, features, sphere of application of the ultrasonic testing in the mass concrete structure with faults, used dynamic FEM to simulate the testing process, discussed when the concrete structure with cracks is under the effect of the pulse, how the elastic waves propagate and what are their changing feature, Researched the principles of the first-arriving waves" phase when the cracks" depths are not same, obtained the relation between the inversion point and the cracks" depth, which has the direction sense in the application of projects,The second part of this dissertation is CT , which used the ultrasonic wave running through the tested-substance to get arriving-time of the ultrasonic wave, then inverse the image This dissertation drawed one CT program which can well present the different little cells ultrasonic wave velocity profiles of the substance, thereby to diagnose the quality of the part of the tested-substance, CT has the better using foreground..

在混凝土结构的施工及使用过程中，由于受其自身及外界各种因素的影响，常常会产生一些缺陷，对结构物的承载能力和耐久性造成严重影响，采用无损检测技术进行质量检测和健康诊断，这对混凝土结构开展安全、稳定性评估以及病害隐患治理研究具有重要意义。本论文主要针对大体积混凝土结构缺陷的检测方法展开研究工作，重点讨论了超声波法检测混凝土结构裂缝的基本原理和方法及其特点、适用范围，运用动力有限元数值模拟其检测过程，探讨了有裂缝缺陷的混凝土结构在脉冲荷载作用下弹性波的传播及其变化特征，研究了不同裂缝深度下首波相位变化规律，得出了反转临界点与裂缝深度之间的关系，这对实际工程应用具有指导意义。声波CT是一种新的无损检测技术，它是利用声波穿透被检测体获取声波接收时间，来进行计算机反演成像的技术。本文利用直射线法编制了层析成像程序，能较好地呈现被检测物体各微小单元的声波速度分布图像，从而对检测体的质量状况作出诊断评估，具有较好的应用发展前景。

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。