“打印”的ICON给我们展示了一台打印机的“图象”，直接把人的思维联系到真实世界中的这个实际物体。
The "printer" icon shows the image of a printer, that relates in a direct similarity to the object printer in the real world.
击打式打印机用一种象锤子式的机械装置把色带压到纸上从而形成图象。
Impact printers usually form images by pressing an inked ribbon against the paper with a hammer-like mechanism.
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