大家公認，河(he)水(shui)(shui)往往是從(cong)安全地(di)方流往低(di)處(chu)，因(yin)為要(yao)養成河(he)水(shui)(shui)，就必(bi)(bi)定使河(he)水(shui)(shui)兩(liang)端兼具有(you)一定的(de)水(shui)(shui)位高(gao)低(di)差(cha)，即進水(shui)(shui)管。與因(yin)此似，控制電(dian)(dian)路(lu)板(ban)要(yao)有(you)直流電(dian)(dian)，其導體兩(liang)端就必(bi)(bi)定要(yao)有(you)電(dian)(dian)勢(shi)(shi)差(cha)差(cha)，即感應(ying)電(dian)(dian)流，出現(xian)電(dian)(dian)勢(shi)(shi)差(cha)差(cha)直流電(dian)(dian)才可(ke)從(cong)控制電(dian)(dian)路(lu)板(ban)中的(de)高(gao)電(dian)(dian)勢(shi)(shi)差(cha)點(dian)流往低(di)電(dian)(dian)勢(shi)(shi)差(cha)點(dian)。

在電(dian)(dian)(dian)(dian)(dian)源(yuan)(yuan)電(dian)(dian)(dian)(dian)(dian)路中，多種兩點(dian)要求(qiu)(qiu)要求(qiu)(qiu)相(xiang)(xiang)(xiang)互之間(jian)(jian)的(de)(de)(de)(de)電(dian)(dian)(dian)(dian)(dian)勢差通(tong)(tong)(tong)(tong)稱該兩點(dian)要求(qiu)(qiu)要求(qiu)(qiu)相(xiang)(xiang)(xiang)互之間(jian)(jian)的(de)(de)(de)(de)相(xiang)(xiang)(xiang)電(dian)(dian)(dian)(dian)(dian)流(liu)(liu)(liu)(liu)(liu)(liu)值(zhi)(zhi)(zhi)(zhi)值(zhi)(zhi)(zhi)(zhi)。相(xiang)(xiang)(xiang)電(dian)(dian)(dian)(dian)(dian)流(liu)(liu)(liu)(liu)(liu)(liu)值(zhi)(zhi)(zhi)(zhi)值(zhi)(zhi)(zhi)(zhi)通(tong)(tong)(tong)(tong)用符(fu)(fu)號符(fu)(fu)號U表達出(chu)來(lai)。相(xiang)(xiang)(xiang)電(dian)(dian)(dian)(dian)(dian)流(liu)(liu)(liu)(liu)(liu)(liu)值(zhi)(zhi)(zhi)(zhi)值(zhi)(zhi)(zhi)(zhi)的(de)(de)(de)(de)基本(ben)上(shang)方是(shi)(shi)伏特，又稱伏，用符(fu)(fu)號符(fu)(fu)號V表達出(chu)來(lai)，通(tong)(tong)(tong)(tong)用的(de)(de)(de)(de)方另外千伏(kV)、毫伏(mV)等。相(xiang)(xiang)(xiang)電(dian)(dian)(dian)(dian)(dian)流(liu)(liu)(liu)(liu)(liu)(liu)值(zhi)(zhi)(zhi)(zhi)值(zhi)(zhi)(zhi)(zhi)分直(zhi)流(liu)(liu)(liu)(liu)(liu)(liu)變(bian)(bian)壓(ya)(ya)(ya)器(qi)(qi)(qi)(qi)(qi)(qi)變(bian)(bian)壓(ya)(ya)(ya)器(qi)(qi)(qi)(qi)(qi)(qi)電(dian)(dian)(dian)(dian)(dian)源(yuan)(yuan)直(zhi)流(liu)(liu)(liu)(liu)(liu)(liu)變(bian)(bian)壓(ya)(ya)(ya)器(qi)(qi)(qi)(qi)(qi)(qi)變(bian)(bian)壓(ya)(ya)(ya)器(qi)(qi)(qi)(qi)(qi)(qi)電(dian)(dian)(dian)(dian)(dian)源(yuan)(yuan)的(de)(de)(de)(de)電(dian)(dian)(dian)(dian)(dian)阻電(dian)(dian)(dian)(dian)(dian)源(yuan)(yuan)相(xiang)(xiang)(xiang)電(dian)(dian)(dian)(dian)(dian)流(liu)(liu)(liu)(liu)(liu)(liu)值(zhi)(zhi)(zhi)(zhi)值(zhi)(zhi)(zhi)(zhi)和(he)座談(tan)(tan)(tan)會(hui)(hui)信(xin)(xin)息(xi)溝通(tong)(tong)(tong)(tong)相(xiang)(xiang)(xiang)電(dian)(dian)(dian)(dian)(dian)流(liu)(liu)(liu)(liu)(liu)(liu)值(zhi)(zhi)(zhi)(zhi)值(zhi)(zhi)(zhi)(zhi)，干電(dian)(dian)(dian)(dian)(dian)池上(shang)的(de)(de)(de)(de)相(xiang)(xiang)(xiang)電(dian)(dian)(dian)(dian)(dian)流(liu)(liu)(liu)(liu)(liu)(liu)值(zhi)(zhi)(zhi)(zhi)值(zhi)(zhi)(zhi)(zhi)為(wei)直(zhi)流(liu)(liu)(liu)(liu)(liu)(liu)變(bian)(bian)壓(ya)(ya)(ya)器(qi)(qi)(qi)(qi)(qi)(qi)變(bian)(bian)壓(ya)(ya)(ya)器(qi)(qi)(qi)(qi)(qi)(qi)電(dian)(dian)(dian)(dian)(dian)源(yuan)(yuan)直(zhi)流(liu)(liu)(liu)(liu)(liu)(liu)變(bian)(bian)壓(ya)(ya)(ya)器(qi)(qi)(qi)(qi)(qi)(qi)變(bian)(bian)壓(ya)(ya)(ya)器(qi)(qi)(qi)(qi)(qi)(qi)電(dian)(dian)(dian)(dian)(dian)源(yuan)(yuan)的(de)(de)(de)(de)電(dian)(dian)(dian)(dian)(dian)阻電(dian)(dian)(dian)(dian)(dian)源(yuan)(yuan)相(xiang)(xiang)(xiang)電(dian)(dian)(dian)(dian)(dian)流(liu)(liu)(liu)(liu)(liu)(liu)值(zhi)(zhi)(zhi)(zhi)值(zhi)(zhi)(zhi)(zhi)，它是(shi)(shi)使用生(sheng)物發生(sheng)反應能維(wei)持座談(tan)(tan)(tan)會(hui)(hui)信(xin)(xin)息(xi)電(dian)(dian)(dian)(dian)(dian)源(yuan)(yuan)量的(de)(de)(de)(de)，而座談(tan)(tan)(tan)會(hui)(hui)信(xin)(xin)息(xi)溝通(tong)(tong)(tong)(tong)相(xiang)(xiang)(xiang)電(dian)(dian)(dian)(dian)(dian)流(liu)(liu)(liu)(liu)(liu)(liu)值(zhi)(zhi)(zhi)(zhi)值(zhi)(zhi)(zhi)(zhi)是(shi)(shi)隨(sui)意(yi)間(jian)(jian)時間(jian)(jian)間(jian)(jian)隔變(bian)(bian)現的(de)(de)(de)(de)，并網(wang)發變(bian)(bian)電(dian)(dian)(dian)(dian)(dian)所的(de)(de)(de)(de)相(xiang)(xiang)(xiang)電(dian)(dian)(dian)(dian)(dian)流(liu)(liu)(liu)(liu)(liu)(liu)值(zhi)(zhi)(zhi)(zhi)值(zhi)(zhi)(zhi)(zhi)正常為(wei)座談(tan)(tan)(tan)會(hui)(hui)信(xin)(xin)息(xi)溝通(tong)(tong)(tong)(tong)相(xiang)(xiang)(xiang)電(dian)(dian)(dian)(dian)(dian)流(liu)(liu)(liu)(liu)(liu)(liu)值(zhi)(zhi)(zhi)(zhi)值(zhi)(zhi)(zhi)(zhi)。直(zhi)流(liu)(liu)(liu)(liu)(liu)(liu)變(bian)(bian)壓(ya)(ya)(ya)器(qi)(qi)(qi)(qi)(qi)(qi)變(bian)(bian)壓(ya)(ya)(ya)器(qi)(qi)(qi)(qi)(qi)(qi)電(dian)(dian)(dian)(dian)(dian)源(yuan)(yuan)直(zhi)流(liu)(liu)(liu)(liu)(liu)(liu)變(bian)(bian)壓(ya)(ya)(ya)器(qi)(qi)(qi)(qi)(qi)(qi)變(bian)(bian)壓(ya)(ya)(ya)器(qi)(qi)(qi)(qi)(qi)(qi)電(dian)(dian)(dian)(dian)(dian)源(yuan)(yuan)的(de)(de)(de)(de)電(dian)(dian)(dian)(dian)(dian)阻電(dian)(dian)(dian)(dian)(dian)源(yuan)(yuan)和(he)座談(tan)(tan)(tan)會(hui)(hui)信(xin)(xin)息(xi)溝通(tong)(tong)(tong)(tong)相(xiang)(xiang)(xiang)電(dian)(dian)(dian)(dian)(dian)流(liu)(liu)(liu)(liu)(liu)(liu)值(zhi)(zhi)(zhi)(zhi)值(zhi)(zhi)(zhi)(zhi)可不可以使用肯(ken)定的(de)(de)(de)(de)試驗(yan)儀(yi)器(qi)(qi)(qi)(qi)(qi)(qi)相(xiang)(xiang)(xiang)互之間(jian)(jian)更換，整流(liu)(liu)(liu)(liu)(liu)(liu)器(qi)(qi)(qi)(qi)(qi)(qi)是(shi)(shi)把座談(tan)(tan)(tan)會(hui)(hui)信(xin)(xin)息(xi)溝通(tong)(tong)(tong)(tong)電(dian)(dian)(dian)(dian)(dian)更換為(wei)直(zhi)流(liu)(liu)(liu)(liu)(liu)(liu)變(bian)(bian)壓(ya)(ya)(ya)器(qi)(qi)(qi)(qi)(qi)(qi)變(bian)(bian)壓(ya)(ya)(ya)器(qi)(qi)(qi)(qi)(qi)(qi)電(dian)(dian)(dian)(dian)(dian)源(yuan)(yuan)直(zhi)流(liu)(liu)(liu)(liu)(liu)(liu)變(bian)(bian)壓(ya)(ya)(ya)器(qi)(qi)(qi)(qi)(qi)(qi)變(bian)(bian)壓(ya)(ya)(ya)器(qi)(qi)(qi)(qi)(qi)(qi)電(dian)(dian)(dian)(dian)(dian)源(yuan)(yuan)的(de)(de)(de)(de)電(dian)(dian)(dian)(dian)(dian)阻電(dian)(dian)(dian)(dian)(dian)源(yuan)(yuan)電(dian)(dian)(dian)(dian)(dian)的(de)(de)(de)(de)試驗(yan)儀(yi)器(qi)(qi)(qi)(qi)(qi)(qi)，顛倒，升壓(ya)(ya)(ya)器(qi)(qi)(qi)(qi)(qi)(qi)則是(shi)(shi)把直(zhi)流(liu)(liu)(liu)(liu)(liu)(liu)變(bian)(bian)壓(ya)(ya)(ya)器(qi)(qi)(qi)(qi)(qi)(qi)變(bian)(bian)壓(ya)(ya)(ya)器(qi)(qi)(qi)(qi)(qi)(qi)電(dian)(dian)(dian)(dian)(dian)源(yuan)(yuan)直(zhi)流(liu)(liu)(liu)(liu)(liu)(liu)變(bian)(bian)壓(ya)(ya)(ya)器(qi)(qi)(qi)(qi)(qi)(qi)變(bian)(bian)壓(ya)(ya)(ya)器(qi)(qi)(qi)(qi)(qi)(qi)電(dian)(dian)(dian)(dian)(dian)源(yuan)(yuan)的(de)(de)(de)(de)電(dian)(dian)(dian)(dian)(dian)阻電(dian)(dian)(dian)(dian)(dian)源(yuan)(yuan)電(dian)(dian)(dian)(dian)(dian)更換為(wei)座談(tan)(tan)(tan)會(hui)(hui)信(xin)(xin)息(xi)溝通(tong)(tong)(tong)(tong)電(dian)(dian)(dian)(dian)(dian)的(de)(de)(de)(de)試驗(yan)儀(yi)器(qi)(qi)(qi)(qi)(qi)(qi)。

電極電位差就是(shi)指在(zai)電源電路中(或磁場中)某(mou)點(dian)與其他選取點(dian)直接(jie)的(de)電壓降降。電極電位差最常見字母符號φ說道，其院(yuan)校(xiao)與電壓降降的(de)院(yuan)校(xiao)一樣。

線(xian)交流(liu)線(xian)電(dian)(dian)壓值(zhi)與(yu)電(dian)(dian)勢(shi)差(cha)(cha)差(cha)(cha)是(shi)(shi)緊緊連接又有(you)差(cha)(cha)異的(de)(de)(de)。線(xian)路(lu)中各點(dian)(dian)的(de)(de)(de)電(dian)(dian)勢(shi)差(cha)(cha)差(cha)(cha)與(yu)符合(he)點(dian)(dian)的(de)(de)(de)會取(qu)舍有(you)關系，就是(shi)(shi)一個(ge)對(dui)于量，總像一座(zuo)座(zuo)山的(de)(de)(de)位置(zhi)是(shi)(shi)以(yi)地立(li)(li)體(ti)圖(tu)(tu)起(qi)算，還(huan)是(shi)(shi)以(yi)海立(li)(li)體(ti)圖(tu)(tu)起(qi)算，其結果可不同的(de)(de)(de)。由(you)此，電(dian)(dian)勢(shi)差(cha)(cha)差(cha)(cha)有(you)正(zheng)、負之(zhi)分，該點(dian)(dian)電(dian)(dian)勢(shi)差(cha)(cha)差(cha)(cha)如(ru)果低于符合(he)點(dian)(dian)電(dian)(dian)勢(shi)差(cha)(cha)差(cha)(cha)時為(wei)正(zheng)，如(ru)果低于符合(he)點(dian)(dian)電(dian)(dian)勢(shi)差(cha)(cha)差(cha)(cha)時為(wei)負。而線(xian)路(lu)中符合(he)各種兩個(ge)間(jian)的(de)(de)(de)線(xian)交流(liu)線(xian)電(dian)(dian)壓值(zhi)是(shi)(shi)兩個(ge)彼此的(de)(de)(de)電(dian)(dian)勢(shi)差(cha)(cha)差(cha)(cha)差(cha)(cha)(線(xian)交流(liu)線(xian)電(dian)(dian)壓值(zhi))，是(shi)(shi)個(ge)肯定量，與(yu)符合(he)點(dian)(dian)的(de)(de)(de)會取(qu)舍成正(zheng)比(bi)，不管一座(zuo)座(zuo)山的(de)(de)(de)位置(zhi)是(shi)(shi)以(yi)地立(li)(li)體(ti)圖(tu)(tu)起(qi)算，還(huan)是(shi)(shi)以(yi)海立(li)(li)體(ti)圖(tu)(tu)起(qi)算，但這(zhe)一座(zuo)座(zuo)山的(de)(de)(de)位置(zhi)差(cha)(cha)(線(xian)交流(liu)線(xian)電(dian)(dian)壓值(zhi))往(wang)往(wang)調整(zheng)變了的(de)(de)(de)。

原因：《亮報》