Precipitation naphtha
[化] 沉淀石脑油(测定润滑油沉淀值的汽油溶剂)
🧩 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. 石脑油\\n[化] 石脑油; 挥发油; 粗挥发油; 粗汽油
🗣️ 情景例句
If you need anything, just ask.
假如你需要什么尽管讲。
It's very annoying.
真烦人。
The garden was soon littered with chunks of metal which had once made up a lawn mower.
一会儿工夫，割草机便被拆成一个个金属零件，乱七八糟地堆在花园里。