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- Ultrasound is sound that has a frequency above the audible range of man that is greater than 20 kHz. In imaging the usual range of frequencies used is between 2 MHz and 10 MHz. 超声是一种声波,在医学影象中,超声仪使用2MHz-10MHz间的声波,此一频率已远远超过人耳所能听到的20khz。
- audible range of frequency 可听音频范围
- Can be used in a wide range of frequency to eliminate EMI/RFI. 在较宽的频率范围内抑制和消除电磁/射频干扰。
- A range of frequencies, usually from 5 hertz to 20,000 hertz, characteristic of signals audible to the normal human ear. 音频，声频：频率的范围，大约在5至20,000赫兹之间，是正常耳可听见的声波信号
- An acoustic-emission pulse contains a very wide range of frequency components, extending up into the megacycle range. 声发射脉冲就包含一个很宽的频率组成范围，可扩展到兆赫。
- Each detector can find them only in a certain range of frequencies. 每种探测器都只能在特定的频率范围找到引力波。
- The frequency range is from 1kHz to10kHz and the step range of frequency can be the 1Hz , 10Hz , 100Hz , 1kHz . 频率步进1Hz,10Hz,100Hz,1kHz可键盘设定;
- The range of frequency modulation has now been shifted, and energies from the outside are working to alter the planet. 频率调整范围现在已经改变，并且从外界而来的能量正运转来改变行星。
- Objective To develop a wavelet noise canceller that cancels muscle electricity and power line hum in wide range of frequency. 目的设计小波去除噪声方法消除心电内肌电和宽频率范围的工频干扰。
- It has come within the range of practical politics. 这就属于可实施性政治的范围了。
- We sell a wide range of ales and stouts. 我们出售种类繁多的浓啤酒和黑啤酒。
- A unit of frequency equal to one cycle per second. 赫兹频率的单位，等于每秒一周
- Come and see our range of gardening tools. 来瞧瞧我们的成套园艺工具吧。
- In order to let system to apply properly in a range of frequency, we find the minimum one that is the maximum displacement in the range of frequency. 为了使系统运用于一频率范围，将针对系统设计参数进行搜寻，寻找目标为最小的于单一频域内之位移最大值。
- Two reflecting surfaces on the reflector are designed to achieve an omnidirectional dispersion pattern over a wide range of frequency. 该反射器包含两个反射面，以达到在一个较宽的频带内实现全指向性的目的。
- It came within my range of vision. 该物体进入了我的视野。
- Broadband A band of light wave or sound wave with a wide range of frequencies. 频率范围广的一段光波或声波。
- A range of hills rose on their left. 连绵的小山耸立在他们的左侧。
- Broadband: A band of light wave or sound wave with a wide range of frequencies. 阔波段:频率范围广的一段光波或声波。
- She is still within range of my gun. 她仍在我枪炮的射程之内。
