ψ (EN)

字母，符号

字母 “ψ”

1. 希腊字母表的第23个字母
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   In the Greek word "ψυχή" (psyche), the letter "ψ" is the first character.

符号 “ψ”

1. （在量子力学中）表示粒子量子态的波函数。
   The Schrödinger equation describes how the wavefunction ψ changes over time.
2. （在心理学中）心理学或心理学家的符号
   She decided to study psychology, often represented by the symbol ψ.
3. （在电气工程中）电通量
   The electric flux ψ through the surface was calculated using Gauss's law.
4. （水物理学和生物化学中）水势，衡量水移动的趋势。
   The water potential ψ inside the cell was higher than outside, causing water to flow out.
5. （在基督教中）是《诗篇》的缩写。
   The choir sang passages from ψ during the church service.
6. （在占星术中）小行星Psyche的符号
   The astrologer noted the position of ψ in the natal chart.