网络与数据通信 协议体系与组成结构 释文 user datagram protocol, UDP 用户数据报协议
- overhead line system
- overhead passenger device
- overhead transmission line passageway
- overhead travelling crane
- overhearing
- overheat
- overheater
- over-heating
- overheating
- over-heating instability
- overheat sensing element
- over-ideal
- over-identification
- over-identified equation
- overimplicit
- overjet
- overjump
- overjustification effect
- overlaid wood-based panel
- overland flow
- overlap
- overlapfree word
- overlap function
- overlap integral
- overlap matrix