理学 编译系统 释 pre-processor 预处理器 根据特定的预处理指令对源代码进行相关文本操作的独立程序，包括删除注释、包含其他文件以及宏替换等。
系统软件 语言与编译 释文 precompiler 预编译程序
- iron-silicon-aluminum soft magnetic alloys
- Iron Smelting and Making Site at Guyingzhen
- Iron Smelting and Making Site at Tieshenggou
- Iron Smelting and Making Site of Han Dynasty
- Iron Soldier
- Iron Square Measure ‘Sheng’ of the Home Ministry
- iron star
- iron statues in Song Dynasty
- iron sulfate
- iron sulfate heptahydrate
- iron sulfides
- iron-sulfur centre
- iron-sulfur protein
- iron sword in Spring and Autumn Period,Lingtai
- Iron Sword with Jade Handle of Guo State
- iron telluride
- iron triangle
- iron trichloride
- Iron Weapons from Han Dynasty Tomb at Mancheng
- Iron Weight of the Wuping Reign
- irony
- iron(Ⅱ,Ⅲ) oxide
- Iroquois
- IRPA
- IRPS