In facsimile transmission, deviation from the rectangular frame due to a lack of synchronism between transmitting and receiving scanner.
在传真传输中，因发送和接收扫描器之间的不同步而产生的偏离矩形框的现象。
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It is widely used for engine room equipments, high-precision instruments, office furnishing such as computer, server, printer, scanner, facsimile printer and upgrade household electric applications.