Pre-coating
[化] 预涂层
🧩 词语组成解析
abbr. 炼油工程师（Petroleum Refining Engineer）
coating
['kəutiŋ]
n. 涂层，覆盖层;（食品上的）面衣，糖衣，涂料;外衣布料上衣料，细呢，花呢;
v. 给…穿上外衣;覆盖;“coat”的现在分词;
🗣️ 情景例句
You going to the baseball game today?
你今天要去看棒球赛吗？
To type a term paper
用打字机打期末报告
It's no use complaining.
发牢骚没什么用。