网络与数据通信 协议体系与组成结构 释文 OSI data link layer OSI数据链路层
- Politician Mansion at Yuanlang Xintian
- Politics
- politics in budgetary process
- politics of behavioralism
- politics of financial development
- politics of internet
- politics of law
- politics of nationality
- politics of place
- politics of scale
- politure
- Politzer, Hugh David
- politzer method
- Polivanov, Yevgeny Dmitrievich
- Poliziano
- polje
- polka
- Polk model
- poll
- Pollaczek
- Pollaczek Khinchin formula
- Pollaczek-Khinchin formula
- Poll Dorset sheep
- pollen
- pollen analysis