PHn.[化]酸碱度(=Potential Of Hydrogen)abbr.公共卫生(=Public Health)abbr.紫心勋章(=Purple Heart)Phrygianadj.佛里几亚的n.佛里几亚

1. A series of supported tungsten phosphide catalysts were prepared by the method of temperature-programmed reduction of phospho-tungstate in hydrogen.
   本文采用氢气程序升温还原磷钨酸盐的方法，制备了一系列负载型磷化钨催化剂。
2. Tungsten Carbide jaws also benefit from being very sharp without becoming too brittle.
   碳化钨颚还得益于其锋利，同时又不会容易断裂。