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English Translations » 甲醇及净化技术 » Daily Question: Methanol Technology Edition 20171013(1)

Daily Question: Methanol Technology Edition 20171013(1)

2017-10-13View Original

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This post was last edited by Xiao Yu on 2017-10-13 at 08:05. There are rewards for correct answers, and there are also rewards for responses. Let’s learn from the best practices in the “Learning & Brothers” section, so that we can make progress through Q&A sessions and mature through posting replies. True or False: Noise below 80 decibels poses no direct physiological harm to humans.
Reply #22017-10-13
Noise below 80 decibels does not pose any direct physiological harm to humans. (V)

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Translated at 2026-07-21 05:46:56

Original: https://bbs.hcbbs.com/thread-1851240-1-1.html

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