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
- objects of labour
- object space
- object-space focus
- object space telecentric system
- object spectral characteristic
- object spectrum library
- object stage
- object state diagram
- object theorem
- object theory
- object tracking
- objectual interpretation of quantifiers
- object variable
- object wave
- object with differentiation
- object world and image world
- oblate
- oblate earth theory
- oblate ellipsoid
- oblate isotropic rotator
- oblateness
- oblateness, flattening
- oblate spherical propellant
- oblate spheroid
- oblate spheroidal coordinate