网络与数据通信 协议体系与组成结构 释文 host-to-network layer 主机到网络接口层
- unfilled aperture radio telescope
- unfilled shell
- unfilled shell, incomplete shell
- unfilled state
- unfiltered
- unfinished
- unfinished business
- Unfinished Comedy
- unfinished game
- unfixed-sum insurance
- unflattened cone
- unflattened wedge
- unfocused
- unfocused interaction
- unfold
- unfoldase
- unfolding
- unfolding of reflective prism
- Unforgettable Battle
- unformatted
- unformatted capacity
- unformed
- unfreezing operations
- Ungava Peninsula
- ungerade