工学 航空电子系统确认及验证 释 line replaceable unit; LRU 外场可更换单元 从结构、功能或电气上，把飞行器零部件、系统或设备划分成若干在外场级维修中可以拆卸或更换的独立单元。
计算机体系结构 存储系统 释文 least recently used, LRU 最近最少使用
- Shellac
- shellac
- shell beach ridge
- shell burning
- shell closure
- Shell coal gasifier
- shell coin
- shell correction
- shell crossing
- shell effect
- shell electron
- sheller
- shell evolution
- shellfish biomineralization
- shellfish cellular immunity of molluscs
- shellfish depuration
- shellfish ecological ice temperature keeping alive
- shellfish harvesting machine
- shellfish larva
- shellfishmollusc cellular encapsulation
- shellfish mudflat culture
- shellfish pretreatment equipment
- shellfish raft aquaculture
- shellfish toxin
- shellfish toxins