The dielectric coefficients of hematite ores measured in audiofrequencyrange are always large in value, and show that hematite is a special dielectric.
在声频范围内测得赤铁矿介电系数值较大,说明它是一种特殊的电介质。
2
Existing predominantly, in the Very Low frequency part of the radio spectrum that corresponds with the audiofrequencyrange, we can experience this activity as audible sound.
尽管这种活动主要存在于无线电声音频率分区的超低频区域,我们还是能够通过听觉来捕捉到它。
3
Audio transformer: Large transmission power, wide frequencyrange, stable performance. Used for telephone, fax machine, VCD, DVD, and audio etc.