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单词 working substance
释义

WordReference Random House Unabridged Dictionary of American English © 2024
working substance, 
  1. Physics, Thermodynamics, Thermodynamicsa substance, usually a fluid, that undergoes changes in pressure, temperature, volume, or form as part of a process for accomplishing work.
  • 1895–1900

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更新时间:2025/2/23 5:34:15