PN

基本解释

abbr. 北极（North Pole）；太平洋北部航空公司（Pacific Northern Airlines， Ine）；性能参数（Performance Number）；可塑性指数（Plasticity Number）；节目预告（Program Notice）；期票（Promissory Note）

It also is making a big push into alternative energies, investing in biofuels and expanding operations designed to cut greenhouse gases. --P.N.
它也积极进入替代能源领域，在生物燃料上投资，同时扩大削减温室气体排放的预算——P.
The tribology properties of the complex systems of the modified borate and P N type lube oil additives were investigated using the four ball machine.
利用四球试验机考察了表面修饰的硼酸盐润滑油添加剂与P N型抗磨添加剂复配体系的摩擦学性能，并分析研究了摩擦表面膜的组成和化学状态。
This paper analyzes the failure mechanism of semiconductor P N junction temperature sensors and presents a new design to reduce the internal stresses and methods to improve the processes.
通过失效形式，分析了半导体P-N结温度传感器的失效机理，介绍了为降低内应力而进行的设计和工艺改进。

Gregg Easterbrook writes a weekly piece called "Tuesday Morning Quarterback" for E.S.P.N.com.
Why didn't they keep right on going with G, H, I, J, K, L, M, N, O, P?
为什么他们不接着写下去呢,按照字母表
耶鲁公开课 - 聆听音乐课程节选
And this is called a "Pidgin," P-I-d-g-I-n, a pidgin.
这就是所谓的"混杂语言"
耶鲁公开课 - 心理学导论课程节选

He digs like a dog to learn his subject, particularly if the subject is narrow and peculiar, such as opto-electronic switches, P-N junctions or a hailstorm's effect on spread spectrum wireless video transmission.
FORBES: Digital Rules