ppf
- 网络生产可能性边界(production possibility frontier)；车漆保护膜(Paint Protection Film)；无源电力滤波器(passive power filter)
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生产可能性边界(production possibility frontier)
当生产可能性边界（PPF）为直角形状时，贸易的改善会提高一国的福利水平。生产点 就是生产可能性边界（PPF）的角点。
车漆保护膜(Paint Protection Film)
...lms公司为您量身定做的汽车漆面保护贴膜-----PPF(paint protection film),为您的座驾设置一道无形屏障,抵御昆虫、碎石、沙尘 …
无源电力滤波器(passive power filter)
无源电力滤波器（PPF）即利用电容和电抗器组成LC调谐电路，在系统中能够为谐波提供并联低阻通路，起到滤波作用；同时…
1
PPF is staying tight-lipped, offering only a written statement.
PPF集团现在守口如瓶，仅在书面上做出声明。
2
It was resulted that the method was practicable and significant in modifying the Chinese standard of PPF testing.
测定试验结果表明，该方法是可行和实用的。因而，对修订透性测定的国家标准具有指导意义。
3
Discussion on the Mechanism of the Modification PPF Influencing the Compressive Strength of the Concrete
改性聚丙烯纤维影响混凝土抗压强度的机理初探