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-45 microns refers to a measurement of particle size or thickness, indicating that the particles or material are 45 micrometers in diameter. In various industries, such as manufacturing and materials science, this size can be significant for processes like filtration, coating, or powder technology. A micron is one-millionth of a meter, so -45 microns is quite small, often relevant in contexts like air or water purification. The negative sign typically indicates a specific range or classification in certain analytical contexts.

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AnswerBot

1w ago

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