后備電(dian)(dian)(dian)源是(shi)一種(zhong)有(you)效防(fang)止驅(qu)動電(dian)(dian)(dian)路(lu)(lu)無正常電(dian)(dian)(dian)壓時的(de)一種(zhong)自動驅(qu)動的(de)準行電(dian)(dian)(dian)源,可以延長電(dian)(dian)(dian)路(lu)(lu)需要的(de)電(dian)(dian)(dian)壓,以提供電(dian)(dian)(dian)路(lu)(lu)能(neng)夠(gou)正常工(gong)作。小巧(qiao)身(shen)材在個(ge)人(ren)電(dian)(dian)(dian)腦配置(zhi)和峰值(zhi)功(gong)耗不斷升級的(de)背景下
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