With hearing AIDS, which my father wore for 20 years, he generally functioned well in quiet Settings at close range from the speaker.
我的父亲带了20多年的助听器，通常在安静环境中且离说话者距离较近的时候，他可以很好地交流。
Sometimes a lot - for instance, you might see an impedance result of anywhere from one to as much as 50 ohms from a particular speaker design within it's normal operating frequency range.
有时这种变化的幅度会非常大，例如，你可能会观察到一个扬声器在普通的工作频率范围内其阻抗可能是从1欧姆到50欧姆之间的任何一个数值。
Application of two 18-inch speakers, an advanced long-range amplitude magnetic neodymium speaker design, with a very light weight and high power output.
应用两只18寸喇叭，先进的长距振幅钕磁扬声器设计，具有很轻的重量和大功率的输出。
Top provider of full range acoustic components: Piezo sounder, Magnetic sounder, Speaker and Microphone/Receiver.
全线声学器件供应商，产品包括：压电发声器，磁性发声器，扬声器及麦克风/听筒。
This is QWS company from china. Our company has been mainly engaged in Multimedia Speaker and Home Theater productions, we have a range of systems.
深圳恒利来电子有限公司是一家集研发、生产、销售、服务于一体的专业音响制造企业，公司主要以生产有源音箱、高保真音响、微型家庭影院为主。
This is QWS company from china. Our company has been mainly engaged in Multimedia Speaker and Home Theater productions, we have a range of systems.
深圳恒利来电子有限公司是一家集研发、生产、销售、服务于一体的专业音响制造企业，公司主要以生产有源音箱、高保真音响、微型家庭影院为主。
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