Fractional precipitation
[化] 分步沉淀; 分段沉淀\\n[医] 分段沉淀
🧩 词语组成解析
fractional
['frækʃənl]
adj. [数]分数的，小数的;微小的，极小的;部分的，少量的;零碎的;
precipitation
[prɪ'sɪpə'teʃən]
n. 匆促;沉淀;（雨等）降落;某地区降雨等的量;
pre 前缀,表示….前的,预先#词根助记：pre+cipit头→ation→落在前头→降落,下降
🗣️ 情景例句
We had this part of the conversation
我们正谈到这儿
I asked him to do it for me, but he wouldn't.
我请他帮我做，但是他不肯。
The Native Americans caught and trained them and were then able to use them to carry their goods when they travelled from one camping ground to another.
美洲土著人捕捉野马，加以驯服。