Reciprocating-plate column
[机] 往复式孔板萃取器
🧩 词语组成解析
[医] 交互的, 往复的
plate
[plet]
n. 盘子，盆子;金属板;均匀厚度的片状硬物体;[摄]底片，感光版;
vt. 镀，在…上覆盖金属板;覆盖;电镀;[印]给…制铅板;
plat 平坦 + e → n.板，片，盘 vt.电镀
column
['kɑləm]
n. 纵队，列;圆柱;专栏;
🗣️ 情景例句
And the telephone number is five five five…three oh nine oh. Thank you.
电话是555-3090。谢谢。
I asked him to paint it for me, but he wouldn't
我请他帮我油漆，但是他不肯。
Sally was very excited because she had never travelled on a train before.
萨莉非常激动，因为她从未乘过火车。