Precipitation polymerization
[化] 沉淀聚合
🧩 词语组成解析
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
n. 聚合\\n[化] 叠合反应; 聚合; 聚合反应
🗣️ 情景例句
Stop being so moody.
不要这么喜怒无常。
Time past cannot be called back again.
光阴一去不复返。
Meanwhile, a microphone, which was lowered into the mine two hours ago, has enabled the men to keep in touch with their closest relatives.
与此同时，两个小时以前放下井去的一只麦克风使井下的人可以与其亲属保持联系。