مقالات من غير تصنيف
The rumors that printers cause cancer have been debunked. x ray printer，Is it true that printers cause cancer? Printer radiation causes cancer? A study shows that the maximum radiation dose of the printer is at the moment of startup, and its radiation value is limited during use. The radiation dose of the printer is generally between 0.8-0.9mg, and it reaches 0.8-0.9mG during operation. , Sometimes reaching 0.8-0.9 mg. However, low-frequency electromagnetic radiation exceeding ...
First clean the circuit board of the display with absolute alcohol to remove the dust, stains, mildew, rust and other substances in the circuit board, and then repair the areas that may be corroded or poor contact in the display. Because the monitor is exposed to humidity, dust, high temperature and other environments, it will cause the internal circuit to short-circuit or form a conductor with a certain resistance value,small lcd screens，thereby destroying the normal operation ...
Bandwidth is a very important parameter of the display, it can determine the performance of the display. The so-called bandwidth is the abbreviation for the passband width of the display video amplifier.customized lcdThe bandwidth of the circuit actually reflects the response speed of the circuit to the input signal and the resolution of the display. The wider the bandwidth, the smaller the inertia, the faster the response speed, the higher the allowable signal frequency, and the smaller the signal ...
Clarify your needs and focus on the real experience,Wired Earphonesï¼OE so that every dollar of your money will not be lost. Clarify the basics: Four steps to lock the target headset Just need first, positioning first:Earphones for listening to music, pay attention to sound quality, wired earphones are the best choice, if you are a traveler, the combination of true wireless + charging compartment has a stronger battery life and is more practical. If you are mostly used in commuting + office ...
If you are a person who likes to use in-ear headphones, you may have heard similar instructions from friends around you. Friends are naturally well-intentioned, Wireless On Ear Headphones，so does the use of in-ear headphones really affect hearing? As long as you keep the earphones clean, do not use them for a long time and at high volume, you can keep your ears healthy. It is the sound volume, not the distance of the sound source, that can cause hearing damage; it is the prolonged ...
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