理学 计算机硬件电路 释 via hole 过孔 用于连接多层印制电路板内不同层导体的垂直连接孔。又称金属化孔。
计算机硬件 计算机工程制造 释文 via hole 过孔
- Dirac hypothesis
- Dirac-Jordan cosmology
- Dirac ladder operators
- Dirac magnetic monopole
- Dirac mass term
- Dirac matrices
- Dirac matrix
- Dirac measure
- Dirac monopole
- Dirac neutrino
- Dirac notation
- Dirac notion
- Dirac operator
- Dirac orthonormality
- Dirac, Paul Adrien Maurice
- Dirac picture
- Dirac point
- Dirac quantization
- Dirac representation
- Dirac sea
- Dirac semimetals
- Dirac's large-number hypothesis
- Dirac spin matrix
- Dirac spinor
- Dirac spinor field