Granosealing
磷酸盐处理, 磷化处理
🗣️ 情景例句
Genetically modified foods and green foods are different.
经基因改良的食物与绿色食物是不同的。
I can see you have put a lot of time into it.
我相信你在制定这个计划上一定花了不少精力吧。
The price increases haven't been too bad at all.
没有涨太多。