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发表于 2025-4-1 04:48:50
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发表于 2025-4-1 09:46:00
Plasma physics and astrophysics,118 elements are radioactive, while there also exist some radioactive forms of the stable elements, such as .C, .K and .H. This trio of naturally occurring radioactive elements are incorporated into our bodies. The smallest particle of an element is called an atom of that element. The names of these
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发表于 2025-4-1 14:09:30
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发表于 2025-4-1 17:20:26
Advances in Solid State Physicsntrations, blood pH, hydration, dissolved CO. concentration in blood, blood glucose concentration, concentrations of wastes, etc. This constancy of internal environment is maintained despite energy and molecules continuously entering and leaving the body. The values of these (and other) variables os