Etching(re) agent
[化] 蚀刻剂
🧩 词语组成解析
🗣️ 情景例句
A special place for special people.
这是为特殊人物而设的特别地方。
I'm always disappointed when I don't get any mail.
当我收不到任何邮件时，我总是很失望。
Yet a great many processes depending on such research are sought for with complete secrecy until the stage at which patents can be taken out.
然而，依赖这种研究的很多工艺程序是在完全保密的情况下进行的，直到可以取得专利权的阶段为止。