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學(xué)習(xí)快評丨qibao666888　　羅?(luo)塘??(tang)高?(gao)級??(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??(kai)關(guān)??(guan)、一??(yi)個(gè)??(ge)滑??(hua)動??(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??(lai)將??(jiang)開??(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?(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?(lai)將?(jiang)開??(kai)關(guān)??(guan)斷??(duan)開??(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??(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)顯秘(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??(kai)?。??。