back porch
短语后沿
词形变化
back porches
复数
back porches
别名
backporch
释义与例句
n.
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1.
A porch at the rear of a building.
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2.
The portion of each scan line between the end (rising edge) of the horizontal sync pulse and the start of active video, used to restore the black level reference in analog video.
媒体