V2EX shm

Shm

释义 Definition

SHM 常见有两种用法:

  1. (物理)简谐运动simple harmonic motion):一种往复振动运动,回复力与位移成正比、方向相反(如弹簧振子、小角度单摆近似)。
  2. (口语/语言学)“shm-”仿拟式前缀:带一点调侃、轻视或否定的重复构词(如 fancy-shmancy 这种语气)。

发音 Pronunciation (IPA)

/s t m/

例句 Examples

Simple harmonic motion is common in spring systems.
简谐运动在弹簧系统中很常见。

In the lab report, we modeled the pendulum’s motion as SHM under the small-angle approximation, then compared the predicted period with measured data.
在实验报告中,我们在小角度近似下把单摆运动建模为简谐运动(SHM),并将预测周期与实测数据进行比较。

词源 Etymology

SHM 多为缩写:

  • 物理义来自 Simple Harmonic Motion 的首字母缩写,常见于教材、实验报告与课堂笔记。
  • 口语/语言学里的 shm- 用法与意第绪语(Yiddish)及美国英语口语传统有关,用重复来表达“就算你这么说/那又怎样”的轻微嘲讽语气(例如 money-shmoney 表示“钱不钱的无所谓/别老提钱”)。

相关词 Related Words

文学与作品 Literary Works

  • The Feynman Lectures on Physics(费曼物理学讲义):在振动与波动相关章节中讨论简谐运动(常以“simple harmonic motion/SHM”出现)。
  • University Physics(Young & Freedman 等,多版本):在简谐振动与波动单元中频繁使用 SHM 作为标准缩写。
  • The Joys of Yiddish(Leo Rosten):讨论英语中的意第绪语影响与“shm-”这类仿拟构词(用于表达调侃语气)。
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