Denitrating column
[化] 脱硝塔; 脱硝酸盐塔
🧩 词语组成解析
column
['kɑləm]
n. 纵队，列;圆柱;专栏;
🗣️ 情景例句
No, it's an original. My father's friend is a calligrapher, and I had him make it for you.
没错，这可是真迹。我父亲的朋友是书法家，专门帮你写的。
A good conscience is a continual feast.
白日不做亏心事，夜半敲门心不惊。
Since the sea covers the greater part of the earth's surface,
既然海洋覆盖着地球的大部分表面，