Dichromate treatment
[机] 铬酸处理
🧩 词语组成解析
n. 重铬酸盐\\n[化] 重铬酸盐(或酯)
🗣️ 情景例句
There are several tours of the Grand Canyon.
到大峡谷有好几个旅游团。
Oh, I'm just going to take it easy.
哦，我只想休息休息。
The further off this solid obstruction, the longer time will elapse for the return of the echo.
固体障碍物越远。回声返回所用时间就越长。