... 质量数唆使器 mass marker 质量衰减 mass attenuation 质量衰减系数 mass attenuation coefficient ...
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严格来说，“熵”证明了在一个封闭、孤立的系统中，一切物质会通过不可逆的变化会造成能量的质量衰减；
Strictly considered, it tells that in a closed, isolated system, everything goes through an irreversible alteration causing a deterioration of the quality of energy.
一高质量电阻器在信号道路和使用瑞士与黄金接触适合低接触电阻和长期的耐久性一起使精密衰减器内只。
Only one high-quality resistor in the signal path and using the Swiss made precision attenuator with gold contacts for low contact resistance and longtime durability.
岩石质量，速度，衰减及各向异性。
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