Voice of reason heard the so-called "voice" is conductive material such as mutual vibrations in the tympanic membrane vibrations in the air such as ...
1816 stethoscope is invented by the French physician Lin Naike. At that time, Lin Naike obese patients for a chest pain doctor, he will ear to the pa ...
Sensors are usually constituted by the three electrodes, of which the most important is the working electrode. It is usually in a catalytically acti ...
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