超声波的

The effect of time,power and volume of water sample of ultrasonic to extermination rate and water quality were studied.

在超声波破碎过程中，超声波的超声时间、超声功率及水样体积对其杀灭率。。。

The optimal output power of ultrasonic wave was 80 W and the temperature was 50℃.

制备过程中，超声波的引人能够提高活性组分的分散性，改善活性组分的粒径，催化剂的催化加氢性能得到明显改善，超声波辅助金属诱导化学镀Ni-B/MgO催化剂的最佳输出功率为80W，制备温度为50℃。

The Radiographer / Ultra-sonographer's role is to independently perform radiographic / ultrasonic examinations and produce images of diagnostic quality for radiological reports with due regard to patient welfare, clinical responsibility, radiation protection and effective use of technology.

放射影像技师/超声波检查技师的职责是独立操作并完成放射影像/超声波的检查并制作可用于相关诊断的影像图片，作为放射影像报告的参考。同时也要考虑和兼顾到病人的利益，相关临床职责，辐射保护和对技术的有效运用。

This is an instrument with which we can generate supersonic wave.

这是一台能产生超声波的仪器。

So the impact of ultrasonic cleaning is clearly recognizable. But to truly understand the value of ultrasonics, one must understand how ultrasonic cleaners really work.

超声波清洗对工业的推动和影响是显而易见的，要真正理解超声波的价值，我们需要进一步了解超声波的原理。

The diagnosis of prostate cancer can be made by a fairly simple biopsy that can be performed in a doctor's office by a urologist or by some ultrasound doctors.

要诊断是否患有前列腺癌，方法其实很简单，只要去医院，找泌尿科医生或者负责超声波的医生做切片检查就行了。

The results show that the effect of addition or no-addition of degasser on grain refinement of Al-5.0%Si alloy ingot is...

结果表明，除气剂的添加与否对Al-5%Si合金铸锭组织的细化没有影响，铸锭由粗大的柱状晶组织构成；采用合适的超声波处理时间，Al-5%Si合金铸锭的等轴晶获得率大幅度提高，可使整个铸锭组织变为细化的等轴晶组织；超声波振动时间过长将导致铸锭内气孔的增加；根据克劳修斯-克拉柏龙方程，某一强度的超声波引起的压力冲击波作用，导致液相转变为固相，引起了超声波的细晶作用。

First of all, it is a elastic wave therefore it can transmit in the most types of materials and it can be used to investigate both their surfaces and their interiors, whereas light can just get through the lucid materials and Hertzian waves is unable to transmit in the conductive materials.

本实验简单介绍超声波的产生方法、传播规律和测试原理，通过对固体弹性常数的测量了解超声波在测试方面应用的特点，通过对试块尺寸的测量和人工反射体定位了解超声波在检验和探测方面的应用。

This paper has studied preparation of Grignard reagents under phonochemistry and optimum technologic conditions is: the power of ultrasonic is 500W and frequency is 250KHZ, having twelve energy conversion devices, water bath temperature being 20C, solvent being THF,unstirred.

本文探讨了超声波合成格利雅试剂的机理，研究了声化学法制备格利雅试剂氯化苄基镁的最佳工艺条件为：在超声波的功率为500W，频率为25KHZ，有12个换能器的条件下，水浴温度为20℃，以THF为溶剂，不搅拌。

The intensity of the ultrasonic wave will increase when the ultrasonic wave is focused by the sound lens in rock stratum.

然而 ，这种方法要受到两个因素的制约：一是增大超声换能器的功率，必然要增大超声换能器的尺寸，这在本身尺寸就很小的油井中是有一定限度的；二是当超声换能器辐射出的超声波的强度过大时，在超声换能器的周围要发生强烈的空化现象，产生大量的气泡，这些气泡将对超声波产生强烈的散射作用，导致超声波的衰减，反而降低超声波在岩层中的传播距离[1] 。

For a big chunk of credit-card losses; the number of filings (and thus charge-off rates) would be rising again, whether

年美国个人破产法的一个改动使得破产登记急速下降，而后引起了信用卡大规模的亏损。

Eph. 4:23 And that you be renewed in the spirit of your mind

弗四23 而在你们心思的灵里得以更新