还原铁

当母乳宝宝开始有规律地吃含铁食物时，重要的是确保吃足够的天然含铁量较高的食物来弥补从母乳中减少的铁吸收。

reduced echelon form【计】

reduced triangular idempotent matrix【数】

reduced tee

reduced sample

reduced ordered pair group【数】

first order reduced density matrix

less-tillage system【农】;minimum tillage【农】;reduced-tillage system【农】

reduced capacity