- 做黑（白）色信號(hào)
- artificial black or white signal: 仿黑或白色信號(hào)
- artificial black white: 仿黑白色信號(hào)
- artificial black signal: 黑電平測(cè)試信號(hào); 模擬黑電平信號(hào); 模擬黑色信號(hào)
- artificial white signal: 模擬白電平信號(hào)
- black and white signal: 黑白信號(hào)
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