2025-03-27 01:56:07 來源:新華網(wǎng)
原標(biāo)題:看了让人想做的文章
學(xué)習(xí)快評丨qibao666888 此?(ci)外??(wai)??,潮??(chao)濕??(shi)天??(tian)氣??(qi)下??(xia)??,隨??(sui)風(fēng)??(feng)飄??(piao)動??(dong)的??(de)風(fēng)??(feng)箏??(zheng)??,一??(yi)旦??(dan)靠??(kao)近??(jin)或??(huo)者??(zhe)接??(jie)觸??(chu)到??(dao)高??(gao)壓??(ya)線??(xian)路??(lu)??,不??(bu)僅?(jin)容??(rong)易??(yi)造??(zao)成??(cheng)人??(ren)身??(shen)傷??(shang)害?(hai)??,還??(hai)極??(ji)易??(yi)引??(yin)發(fā)??(fa)線??(xian)路??(lu)短??(duan)路??(lu)、跳?(tiao)閘?(zha)等??(deng)安??(an)全??(quan)事??(shi)故??(gu)??。?? 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??(ge)開??(kai)關(guān)??(guan)、一??(yi)個??(ge)滑?(hua)動??(dong)變??(bian)阻??(zu)器??(qi)和??(he)一?(yi)個??(ge)電??(dian)流??(liu)表??(biao)??。??現(xiàn)?(xian)在??(zai)在??(zai)這??(zhe)個??(ge)電??(dian)路??(lu)里??(li)接??(jie)了?(le)一??(yi)個??(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??(xian)偏??(pian)轉(zhuǎn)??(zhuan)??。。