瀏覽HP.com Hong Kong SAR China 以購買 HP LaserJet CF254A 220V 檢修/定影器套件。適配打印機有 與下列型號兼容: HP LaserJet Enterprise 700 打印機 M712 系列 等。
Kartuše s črnilom – Tonerji – Originalno HP-jevo črnilo in toner HP LaserJet CF254A 220V Maintenance/Fuser Kit (CF254A) Pregled Podpora Nakup HP LaserJet CF254A 220V Maintenance/Fuser Kit (CF254A)HP printer maintenance kits ensure your HP printer remains in working condition and ...
【题目】某牌子电热水器储水体积50L,加热管电阻两端电压为220V时,加热功率为2200W,将储水器中的水从17℃加热到50℃.[ρ水=1×103kg/m3, 1m3=1000L,c水=4.2×103J/(kg℃)].求:(1)加热管电阻的电阻值是多少?(2)将这些水从17℃加热到50℃要吸收多少热量?(3)若加热管产生的热量全部被水吸收,需加热...
Tintes kasetnes — tonera kasetnes — oriģinālā HP tinte un toneris HP LaserJet CF254A 220V Maintenance/Fuser Kit (CF254A) Pārskats Atbalsts Pirkt HP LaserJet CF254A 220V Maintenance/Fuser Kit (CF254A)HP printer maintenance kits ensure your HP printer remains in working condition and...