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positive feedback

phys. In positive feedback, the output is used to enhance the input; an example is an electronic oscillator, or the howl produced by a loudspeaker that is placed too closed […]

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positive ion

chem. An atom or group of atoms that have lost one or more electrons, thus carrying a positive charge. རྡུལ་ཕྲན་ཞིག་གམ་རྡུལ་ཕྲན་གྱི་ཚོགས་ཤིག་གིས་གློག་རྡུལ་གཅིག་གམ་དུ་མ་བརླག་པ་ལ་བརྟེན་ནས་ཕོ་ཁུར་དང་ལྡན་པ་དེ་ལ་གོ

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