Phosphowolframic acid
[机] 磷钨酸
🧩 词语组成解析
🗣️ 情景例句
I am unfamiliar with law.
我对法律不熟悉。
Didn't I tell you he's same size to me?
我没有说过他和我一样大小吗？
so every so often a sample is obtained with a coring bit.
因此时常要用取芯钻头取样。