理学 计算机硬件电路 释 feed-through;pin-through-hole 通孔 穿透印制电路板所有层的过孔。把引脚插入通孔并在反面焊盘上焊牢，可将元器件固定安装在印制板上。
计算机硬件 计算机工程制造 释文 feed-through, pin-through-hole 通孔
- ray strength
- ray surface
- Raytheon Company
- ray theory
- ray theory of electromagnetic wave
- ray tracing
- ray tracing method
- ray vector
- Razbborov
- Razborov
- Razheng Guojiaji Senlingongyuan
- Razin effect
- Razin-Tsytovich effect
- Razin’s Uprising
- Razmadze
- razor clam
- razor-thin disk
- Razumikhin V function method
- Razumov crater
- Raúl Prebisch
- RB
- Rb
- RBA
- R. Baer
- R. Baer (1902—1979)