DC-DC converters, LCD TV, Printers, Copy machine.

直流转换器、液晶电视、打印机、复印机。

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Even though they can print one book at a time, it can be expensive per unit, more expensive than hard copy printers.

FORBES: Publishing Options for Your Book

Sales of color-laser printers and multi-function devices that copy, print, scan and fax, have provided growth spurts, even as traditional black-and-white printing and copying shrinks.

FORBES: Did You See "Office Space"? The Printer Scene? Read On

For the first time printers and booksellers were required to deposit a copy of each of their publications in the King's library.

UNESCO: MEDIA SERVICES