V2EX energy-loss

Energy Loss

Definition / 释义

“能量损失;能量耗散”:指系统中的能量在传递、转换或运动过程中减少,通常以热、声、辐射等形式散失,导致可用能量下降。(常见于物理、工程与材料科学语境;在更宽泛语境中也可指“精力消耗”。)

Pronunciation / 发音(IPA)

/nrdi ls/

Examples / 例句

Energy-loss is higher when the machine runs without lubrication.
机器在缺少润滑的情况下运转时,能量损失更高。

In high-speed transmission lines, energy-loss due to resistance and dielectric heating must be minimized to maintain signal integrity.
在高速传输线中,必须尽量降低由电阻和介质发热造成的能量损失,以保持信号完整性。

Etymology / 词源

energy 来自希腊语 energeia(意为“活动、作用、效能”),经拉丁语与法语进入英语;loss 源自古英语 los(意为“毁坏、损失”)。组合词 energy loss 字面即“能量的损失”,在近现代科学写作中逐渐固定为描述耗散与效率下降的常用术语。

Related Words / 相关词

Notable Works / 文献与作品中的用例

  • The Feynman Lectures on Physics(费曼《物理学讲义》)讨论摩擦、耗散与系统中的能量转化时常涉及能量损失概念
  • Introduction to Solid State Physics(Kittel《固体物理导论》)在电子与材料相互作用、散射与能量谱分析中使用相关表述
  • Introduction to Electrodynamics(Griffiths《电动力学导论》)涉及电磁波传播、介质损耗与能量衰减(即能量损失)等主题
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