Aminex
多孔性阴离子交换树脂
🗣️ 情景例句
Hi!
嗨！
Fair and softly go far in a day.
谦和稳重，前程远大。
She went into my room and got a big surprise when she saw all those books on the floor.
她走进我的房间，当她看到地板上的那些书时，大吃一惊。