网络与数据通信 网络互联 释文 common open policy service, COPS 通用开放策略服务
- helicograph
- helicoid
- helicoidal motion
- helicoidal surface
- helicoid cyme
- helicon
- heliconia family
- helicon plasma thruster
- helicon wave
- helicon wave plasma
- helicopter bub-up
- helicopter flight
- helicopter flight control
- helicopter flight performance
- helicopter flight test
- helicopter ground resonance
- helicopter ground resonance design verification test
- helicopter hover performance
- helicopter joint test bench test
- helicopter logging
- helicopter performance of forward flight
- helicopter rotor system
- helicopter structure
- helicopter time domain airborne electromagnetic system
- helicopter transmission system