- beam impedance
- 电子束: electron beam
- 阻抗: impedance
- 线束阻抗: impedance of wiring harness
- 约束阻抗: blocked impedance
- 电子束: electron beam; pencil; bunch of electrons; bundle of electrons; cathode beam; cathode-ray beam; cathode-ray pencil; electron bundle; electron rays; electronic beam
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