tractor feed 输纸机械 ; 牵引馈入 ; 带子来使卷纸轴
tractor feed drive unit 输纸驱动部件
paper feed tractor 走纸牵引装置
tractor paper feed unit [计] [印刷] 输纸牵引部件
N the automatic movement of a continuous roll of edge-perforated paper through the platen of the printer 牵引送纸 [计算机]
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