pck meaning in English

学科教学知识

This pck avoiding miscellanecous circuit design , reducing parts and accessd ries , lowering volume and weight largely , and strengthening operating availability : provided mith high capacity to reduce quantity of batteries andjkeep same dischange time , without replacing battery frequently ; supplying nith stable putput power fit to origins of long time unstable voltage and avoiding supplying power by kattery under not power fqilure ; this unit can be located beside computer becamse of its beautiful appearance
本系列不间断电源是本公司最新推出的新一代方波后备式不间断电源，专为个人电脑设计，集交流稳压器高速后备电源及尖峰浪涌收为一体，具有体积小、功能全、效率高、性能可靠、使用方便等特点，并具有周全的自动保护功能。