蓝牙耳机 英语作文
蓝牙耳机 英语作文1：Bluetooth headset
"Earphone" is a kind of entertainment tool commonly used by modern people, but with the development of science and the progress of human beings, people often forget the harm of these high-tech products to human beings. Headphones are the killers of our health. Whether listening to the radio or listening to music, the highest sound of earphones can reach decibels, which is several times higher than the ordinary noise.
When we are exposed to noise, we will produce Now tinnitus, hearing loss, if the exposure to noise for a long time, high-resolution sound wave in the cochlear concussion fluid, hair will be excessively stimulated, hearing loss is more obvious in daily life, the level decibel will interfere with conversation, distract people, not concentrate, affect work efficiency, even accidents, long-term work or living in decibel noise environment, will seriously affect hearing and guidance As a result, many other diseases are caused by the side effects of MP3 players. The sound near their earphones can even be heard. The noise is often higher than d
ecibels.
Use MP earmuffs to accept noise decibels. The highest one has reached decibels. Therefore, we should pay attention to the danger brought by earphones and use them reasonably.
中文翻译：
“耳机”是现代人常用的一种娱乐工具，但随着科学的发展，人类的进步很多时候人们会忘记这些高科技产品对人类的危害，耳机是我们健康的杀手，无论是听收音机还是听音乐，其实耳机声音最高的可以达到分贝，比普通噪音高出好几倍，而我们接触噪音，会出现耳鸣、听力损失，如果接触噪音时间过长，高分声波在耳蜗震荡液中，头发会受到过度刺激，听力损失在日常生活中更为明显电平分贝会干扰谈话，使人分心，精神不集中，影响工作效率，甚至发生事故，长期工作或生活在分贝噪音环境中，会严重影响听力并导致其他疾病的发生，很多都是从侧面影响MP3一族之后，他们耳机旁边的声音甚至可以听到他，噪音往往超过分贝使用MP的耳膜接受噪音分贝，最高的已经达到分贝所以我们应该注意耳机给我们带来的危险，合理使用耳机。
蓝牙耳机 英语作文2：蓝牙耳机
It is said that there are many high school students who use earphones to listen to music or learn English for a long time. Their symptoms are very similar to yours. I think you must have overused the earphones recently.
It is unhealthy. The opportunity to continue to use your ears will have a more serious impact on you. So I suggest that if you can play it, you'd better not use stereo headphones.
headsetI wish you a speedy recovery and hope you'll get better next time The letter has been solved, because of the trouble brought by excessive use of headphones, you can also find a better way to learn. I wish you a better result.
中文翻译：
听说现在有很多高中生在长时间使用耳机听音乐或学英语，他们出现的症状和你很相似，我想你最近一定是过度使用耳机了，这是不健康的，继续用耳朵的机会会给你更严重的影响，所以我建议你如果能放的话最好不要用立体声耳机，祝你早日康复，希望下次你的来信已经
解决，因为耳机过度使用给你带来的烦恼，你也能到更好的学习方法，祝你的成绩更上一楼。
蓝牙耳机 英语作文3：蓝牙耳机
Bluetooth is a general radio interface in the GHz band. It enables portable electronic devices to connect and communicate wirelessly through short-range ad hoc networks. Each piconet unit can communicate with multiple other units at the same time.
More each unit can belong to multiple piconets at the same time. Besides Ericsson, Bluetooth technology has also obtained Nokia IBM and many other systems Manufacturer support, so there is no need to provide cables and connectors for cordless phones or mobile phones using wireless headphones, computer printers, projectors or LANs, and pave the way for new and completely different products. Equipment and application technical features 1ms / s symbol rate uses maximum available channel bandwidth to quickly frequency hopping to avoid interference adaptive output power minimization interference short packets in Maximum capacity fast acknowledgement during interference
allows low coding overhead cvsdcontinuous variable slope Delta modulation speech coding can run at high bit error rate.
Flexible packet types support a wide range of air interface applications. According to the small high-performance integrated radio transceiver, each transceiver is assigned a unique bit address from the IEEE standard, so as to minimize the current consumption of unlimited GHz available in the world Ism is running in free bandwidth, although the location and bandwidth are slightly changed, the application range is set to m to optimize the target market for mobile and commercial users. The total data rate is 1mbit / s, and the second generation plan is to increase it to 1mbit / s.
single point connection allows the maximum data transmission rate of kbit / s. The voice channel uses the packet switching protocol based on frequency hopping scheme with hop / sec to operate in noisy radio High performance in the environment. However, the maximum power consumption of 1 MHz ISI / S is available at a very low power consumption of 1 MHz / s in the standard IEEE MHz / s bandwidth when the data transmission is at a very low rate of 1 MHz.