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- The good news is that because this call has an ultrasonic frequency,we are unable to hear it. 好在这些声音是超声波频率,所以我们听不到这些声音。
- The good news is that because this call has an ultrasonic frequency, we are unable to hear it. 好在这些声音是超声波频率,所以我们听不到这些声音。
- Acoustic power and ultrasonic frequency are both important factors of the degradation of paper mill wastewater ultrasound. 声功率及声频率对造纸黑液的超声降解均有影响。 (5) 超声时向溶液中通入不同溶解气体均能提高超声辐射的效果。
- The main and the trigger circuits of an ultrasonic frequency thyris-tor inverter are presented, which may be used in ultrasonic emulsifica-tion units. 本文提出了适用于超声乳化装置的超声频可控硅逆变器主电路和触发电路,分析了电路的工作原理,并提供了主电路的主要参数及其试验结果。
- The effect of ultrasonic frequency on the morphology and phase composition of coating was investigated by SEM,EDAX,FTIR and XRD. 采用声电沉积工艺在炭/炭复合材料表面制备了磷灰石生物活性涂层,借助SEM,EDAX,XRD,FTIR等分析测试手段,考察了超声频率对涂层组成、结构和形貌的影响。
- The influences of ultrasonic frequency, ultrasonic time and solvent content on the extraction rate of fat oil in Elaeagnus angus-tifolia L.were studied.The optimum extraction condition was obtained. 用均匀设计法考察超声频率、超声时间和溶剂用量对沙枣油提取率的影响,得到提取沙枣油的优化超声工艺条件。
- It works by sending an ultrasonic frequency through spring connections into a piezo transducer bonded to the bottom of the flow through cuvette .cuvette detection only works in AUTO mode. 但是如果启动该系统的话,可以延长清洗的间隔时间。
- The tool is made to vibrate a few hundredths of a millimeter at ultrasonic frequencies ranging from 19kHz to 25kHz. 刀具以19,000Hz至25,000Hz的超声频率作百分之几毫米的振动。
- ultrasonic frequency amplification 超声频放大
- ultrasonic frequency response model 超声频响模型
- The doctors gave him an ultrasonic brain scan. 医生给他做了脑部超声波扫描检查。
- The Design of Specimen for Fatigue Test at Ultrasonic Frequency 超声疲劳试样设计
- He varied the transmission frequency. 他变换了无线电传送的频率。
- A unit of frequency equal to one cycle per second. 赫兹频率的单位,等于每秒一周
- Ultrasonic frequency invariance and its application in flaw classification 超声频率一致性分析及其在缺陷分类中的应用
- Impedance Match of Transducer System in Ultrasonic Frequency Power Supply 超声电源换能振动系统的阻抗匹配研究
- Fatal accidents have decreased in frequency over recent years. 近年来死亡事故发生的频率已经下降。
- We can often correlate age with frequency of illness. 年龄的大小往往与发病率有关。
- Accidents on that highway are happening with increasing frequency. 那条高速公路上车祸发生得越来越频繁。
- Set up an ultrasonic wire bonding laboratory. 成立超声波电子焊接实验室.