platinum 专八高考

Some systems, like Fortress (Mirage Dental Co.) and Cerinate (Den-Mat Corp.), utilize a direct build up of a ceramic on a refractory die or on a master die swedged with palladium or platinum foil.

不同的全瓷间接修复系统其材料组分与制作过程有大不同。牙科材料制造商在其各自系统内使用各种瓷材料与瓷填料颗粒来达到特定的强度与美学效果。

Palladium can be separated from polyxene by the process of resolving polyxene,removing nitrate,precipitating palladium,etc.The grade of pure platinum obtained from the process is more than 99.95%.

粗经王水溶解,赶硝,加入丁二酮肟使大部分钯以沉淀的形式与分离,余留的少量钯用溴酸钠水解法处理,可达到钯分离的目的,所得纯品位高于99.95%。

I’ll give her a platinum ring.

我打算送给她一枚白金戒指。