工学 膳食调查 释 specific proposed levels; SPL 特定建议值 膳食中具有改善人体生理功能的成分有利于维护人体健康所应达到的摄入量。 工学 声压级 释 sound pressure level; SPL 声压级 用来表示声音的强弱，以对数尺衡量有效声压相对于一个基准值大小的物理量。
软件工程 释文 software product line, SPL 软件产品线
- nonsingular homology
- nonsingular integral equation
- nonsingularity
- non-singular lens
- nonsingular linear transformation
- nonsingular mapping
- non singular matrix
- non-singular matrix
- nonsingular matrix
- nonsingular model
- nonsingular operator
- nonsingular perspectivity
- nonsingular point
- nonsingular projective transformation
- non singular quadratic form
- non-singular quadratic form
- nonsingular quadratic form
- non singular real algebraic variety
- non-singular real algebraic variety
- nonsingular real algebraic variety
- nonsingular solution
- nonsingular space
- nonsingular spacetime
- nonsingular stochastic process
- nonsingular surface