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學(xué)習(xí)快評(píng)丨qibao666888　　羅??(luo)塘??(tang)高??(gao)級(jí)?(ji)中??(zhong)學(xué)?(xue) 劉??(liu)老??(lao)師??(shi)：我??(wo)們??(men)現(xiàn)??(xian)在??(zai)所??(suo)用??(yong)到??(dao)的??(de)器??(qi)材??(cai)是??(shi)一??(yi)節(jié)??(jie)干?(gan)電??(dian)池??(chi)、一??(yi)個(gè)??(ge)開(kāi)?(kai)關(guān)??(guan)、一??(yi)個(gè)?(ge)滑??(hua)動(dòng)??(dong)變??(bian)阻??(zu)器??(qi)和??(he)一??(yi)個(gè)??(ge)電??(dian)流??(liu)表??(biao)??。??現(xiàn)??(xian)在??(zai)在??(zai)這??(zhe)個(gè)??(ge)電??(dian)路??(lu)里??(li)接??(jie)了?(le)一??(yi)個(gè)??(ge)干??(gan)燥??(zao)的??(de)風(fēng)??(feng)箏??(zheng)線??(xian)?，接??(jie)下??(xia)來(lái)??(lai)將?(jiang)開(kāi)??(kai)關(guān)??(guan)閉??(bi)合??(he)?，可??(ke)以??(yi)看??(kan)到??(dao)電??(dian)流?(liu)表??(biao)的??(de)示??(shi)數(shù)??(shu)仍??(reng)然??(ran)為??(wei)0??。說(shuō)??(shuo)明??(ming)在??(zai)干??(gan)燥??(zao)環(huán)?(huan)境??(jing)下?(xia)?，風(fēng)??(feng)箏??(zheng)線??(xian)是??(shi)不??(bu)導(dǎo)??(dao)電?(dian)的??(de)??。接??(jie)下??(xia)來(lái)?(lai)將??(jiang)開(kāi)??(kai)關(guān)??(guan)斷??(duan)開(kāi)??(kai)?，取??(qu)下??(xia)干??(gan)燥??(zao)的?(de)風(fēng)??(feng)箏??(zheng)線??(xian)?，將??(jiang)這??(zhe)根?(gen)風(fēng)??(feng)箏??(zheng)線??(xian)泡??(pao)入?(ru)含??(han)有??(you)雜??(za)質(zhì)?(zhi)的??(de)水?(shui)中??(zhong)?，再??(zai)將??(jiang)它??(ta)取??(qu)出?(chu)??。然??(ran)后??(hou)將??(jiang)浸??(jin)滿??(man)水?(shui)的??(de)風(fēng)??(feng)箏??(zheng)線?(xian)接??(jie)入??(ru)電??(dian)路??(lu)?，閉??(bi)合?(he)開(kāi)??(kai)關(guān)??(guan)?，可??(ke)以??(yi)發(fā)??(fa)現(xiàn)??(xian)電??(dian)流??(liu)表??(biao)的??(de)指??(zhi)針??(zhen)有?(you)了??(le)明??(ming)顯??(xian)偏??(pian)轉(zhuǎn)??(zhuan)???！　∠??(xiao)防??(fang)提??(ti)醒?(xing)??，放??(fang)風(fēng)??(feng)箏??(zheng)時(shí)??(shi)??，要??(yao)保??(bao)持??(chi)風(fēng)?(feng)箏??(zheng)線??(xian)干??(gan)燥??(zao)??，如??(ru)遇??(yu)天??(tian)氣??(qi)變??(bian)化?(hua)??，要??(yao)及??(ji)時(shí)??(shi)收??(shou)好??(hao)風(fēng)??(feng)箏??(zheng)離??(li)開(kāi)??(kai)??。??。