计算机硬件 输入输出设备 释文 key code 键码
- Hellmann Feynman theorem
- Hellmann-Feynman theorem
- Helly
- Helly condition
- Helly number
- Helly principle of selection
- Helly selection theorem
- Helly theorem
- Helly-type theorem
- Helmert
- Helmert-Pearson distribution
- Helmert，F.R.
- helmet
- helmet mounted display
- helmet mounted display, HMD
- helmet-mounted display system
- helmet-mounted sight
- helmet shell
- helmet straps
- helmet streamer
- helm graph
- Helmholtz
- helmholtz
- Helmholtz Association of German Research Centres
- Helmholtz capacitor model