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摘 要 :一、看(kan)商(shang)標(biao)標(biao)識是否齊全。正宗(zong)產品(pin)的外包(bao)裝質(zhi)量(liang)好,包(bao)裝盒(he)上字跡清晰,套印色(se)彩鮮(xian)明(ming)。選購時應仔(zi)細認清,以(yi)防買了假冒偽(wei)劣產品(pin)。 二、看(kan)幾何(he)尺寸有無(wu)變形。有些零件因制造、運輸、存放不當,易(yi)產生變形。無(wu)骨架油封外緣應端正,用手(shou)握使其變形,松手(shou)后應能(neng)恢復(fu)原狀。在選購各類襯墊時,也應注意檢查幾
2023-03-13 -
摘 要 :發動機配(pei)件:缸蓋、機體(ti)、油(you)底殼等(deng); 曲(qu)柄(bing)連桿(gan)機構:活(huo)塞、連桿(gan)、曲(qu)軸、連桿(gan)瓦、曲(qu)軸瓦、 活(huo)塞環等(deng); 配(pei)氣(qi)(qi)機構:凸輪軸、進(jin)(jin)氣(qi)(qi)門(men)、排(pai)氣(qi)(qi)門(men)、搖臂(bei)、搖臂(bei)軸、挺柱、推桿(gan)等(deng); 進(jin)(jin)氣(qi)(qi)系(xi)統(tong):空氣(qi)(qi)濾芯、節氣(qi)(qi)門(men)、進(jin)(jin)氣(qi)(qi)諧振器(qi)、進(jin)(jin)氣(qi)(qi)歧(qi)管等(deng); 排(pai)氣(qi)(qi)系(xi)統(tong):三元觸媒、排(pai)氣(qi)(qi)歧(qi)管、排(pai)
2023-03-13 -
摘 要 :發(fa)動機配件:缸蓋(gai)、機體、油(you)底殼等(deng); 曲柄連桿(gan)(gan)機構:活塞、連桿(gan)(gan)、曲軸(zhou)(zhou)、連桿(gan)(gan)瓦、曲軸(zhou)(zhou)瓦、 活塞環等(deng); 配氣(qi)(qi)機構:凸輪軸(zhou)(zhou)、進(jin)(jin)氣(qi)(qi)門、排氣(qi)(qi)門、搖(yao)臂(bei)、搖(yao)臂(bei)軸(zhou)(zhou)、挺柱、推桿(gan)(gan)等(deng); 進(jin)(jin)氣(qi)(qi)系(xi)(xi)統(tong):空氣(qi)(qi)濾芯、節氣(qi)(qi)門、進(jin)(jin)氣(qi)(qi)諧振器(qi)、進(jin)(jin)氣(qi)(qi)歧管等(deng); 排氣(qi)(qi)系(xi)(xi)統(tong):三元觸(chu)媒、排氣(qi)(qi)歧管、排
2023-03-13 -
摘 要(yao) :發動機(ji)配件:缸蓋、機(ji)體、油底殼(ke)等(deng)(deng); 曲柄連桿(gan)(gan)機(ji)構:活(huo)塞、連桿(gan)(gan)、曲軸(zhou)、連桿(gan)(gan)瓦、曲軸(zhou)瓦、 活(huo)塞環(huan)等(deng)(deng); 配氣(qi)(qi)機(ji)構:凸輪軸(zhou)、進氣(qi)(qi)門(men)(men)、排(pai)(pai)氣(qi)(qi)門(men)(men)、搖(yao)臂、搖(yao)臂軸(zhou)、挺柱、推桿(gan)(gan)等(deng)(deng); 進氣(qi)(qi)系統:空氣(qi)(qi)濾芯(xin)、節氣(qi)(qi)門(men)(men)、進氣(qi)(qi)諧(xie)振(zhen)器(qi)、進氣(qi)(qi)歧管等(deng)(deng); 排(pai)(pai)氣(qi)(qi)系統:三元觸(chu)媒(mei)、排(pai)(pai)氣(qi)(qi)歧管、排(pai)(pai)
2023-03-13 -
摘 要 :一:電(dian)(dian)(dian)(dian)阻(zu)??作(zuo)為電(dian)(dian)(dian)(dian)子(zi)行業的(de)(de)(de)工作(zuo)者,電(dian)(dian)(dian)(dian)阻(zu)是無(wu)人(ren)不知無(wu)人(ren)不曉(xiao)的(de)(de)(de)。它的(de)(de)(de)重要性,毋(wu)庸置疑。人(ren)們都(dou)說“電(dian)(dian)(dian)(dian)阻(zu)是所有電(dian)(dian)(dian)(dian)子(zi)電(dian)(dian)(dian)(dian)路(lu)中(zhong)使用最多的(de)(de)(de)元件。”??電(dian)(dian)(dian)(dian)阻(zu),因為物(wu)質對電(dian)(dian)(dian)(dian)流產生的(de)(de)(de)阻(zu)礙作(zuo)用,所以稱(cheng)其該作(zuo)用下的(de)(de)(de)電(dian)(dian)(dian)(dian)阻(zu)物(wu)質。電(dian)(dian)(dian)(dian)阻(zu)將會導(dao)致電(dian)(dian)(dian)(dian)子(zi)流通量(liang)的(de)(de)(de)變化,電(dian)(dian)(dian)(dian)阻(zu)越小(xiao),電(dian)(dian)(dian)(dian)子(zi)流通量(liang)越大,反(fan)之(zhi)亦然。沒(mei)有電(dian)(dian)(dian)(dian)阻(zu)或電(dian)(dian)(dian)(dian)阻(zu)很
2023-03-13 -
摘(zhai) 要 :常用(yong)的(de)電(dian)子(zi)元器件:電(dian)阻(zu)(zu)(zu)、電(dian)容、晶(jing)體二極(ji)管、穩壓二極(ji)管、電(dian)感、變容二極(ji)管等。 1、電(dian)阻(zu)(zu)(zu) 電(dian)阻(zu)(zu)(zu),因為(wei)物質(zhi)對電(dian)流產生的(de)阻(zu)(zu)(zu)礙作(zuo)用(yong),所以稱(cheng)(cheng)其該作(zuo)用(yong)下的(de)電(dian)阻(zu)(zu)(zu)物質(zhi)。電(dian)阻(zu)(zu)(zu)將(jiang)會導(dao)致電(dian)子(zi)流通量(liang)的(de)變化,電(dian)阻(zu)(zu)(zu)越小(xiao),電(dian)子(zi)流通量(liang)越大(da),反之(zhi)亦然。沒有電(dian)阻(zu)(zu)(zu)或電(dian)阻(zu)(zu)(zu)很(hen)小(xiao)的(de)物質(zhi)稱(cheng)(cheng)其為(wei)電(dian)導(dao)體,簡(jian)稱(cheng)(cheng)導(dao)體。不能形成
2023-03-13 -
摘 要(yao) :一:電(dian)(dian)(dian)阻(zu)??作為(wei)電(dian)(dian)(dian)子(zi)行業的(de)(de)(de)(de)工作者,電(dian)(dian)(dian)阻(zu)是(shi)無人(ren)不知無人(ren)不曉的(de)(de)(de)(de)。它的(de)(de)(de)(de)重要(yao)性,毋(wu)庸(yong)置疑。人(ren)們都說(shuo)“電(dian)(dian)(dian)阻(zu)是(shi)所有(you)電(dian)(dian)(dian)子(zi)電(dian)(dian)(dian)路中(zhong)使用最多的(de)(de)(de)(de)元件。”??電(dian)(dian)(dian)阻(zu),因為(wei)物(wu)質對(dui)電(dian)(dian)(dian)流(liu)(liu)產生的(de)(de)(de)(de)阻(zu)礙作用,所以稱其該作用下的(de)(de)(de)(de)電(dian)(dian)(dian)阻(zu)物(wu)質。電(dian)(dian)(dian)阻(zu)將(jiang)會導致(zhi)電(dian)(dian)(dian)子(zi)流(liu)(liu)通(tong)量的(de)(de)(de)(de)變化,電(dian)(dian)(dian)阻(zu)越(yue)小,電(dian)(dian)(dian)子(zi)流(liu)(liu)通(tong)量越(yue)大,反之亦然。沒有(you)電(dian)(dian)(dian)阻(zu)或(huo)電(dian)(dian)(dian)阻(zu)很
2023-03-13 -
摘 要(yao) :1、電(dian)(dian)容(rong)(rong)在電(dian)(dian)路(lu)中(zhong)(zhong)一般用(yong)“C”加數字表(biao)(biao)示(如(ru)C13表(biao)(biao)示編號為13的電(dian)(dian)容(rong)(rong))。電(dian)(dian)容(rong)(rong)是(shi)由兩片金 屬膜緊(jin)靠(kao),中(zhong)(zhong)間用(yong)絕緣材料隔開(kai)而組成的元件。電(dian)(dian)容(rong)(rong)的特性主要(yao)是(shi)隔直(zhi)流(liu)通交流(liu)。 電(dian)(dian)阻(zu)(zu)(zu) 電(dian)(dian)阻(zu)(zu)(zu)在電(dian)(dian)路(lu)中(zhong)(zhong)用(yong)“R”加數字表(biao)(biao)示,如(ru):R1表(biao)(biao)示編號為1的電(dian)(dian)阻(zu)(zu)(zu)。電(dian)(dian)阻(zu)(zu)(zu)在電(dian)(dian)路(lu)中(zhong)(zhong)的主要(yao)作用(yong)為分流(liu)、限流(liu)、分壓
2023-03-13 -
摘 要 :青(qing)島誠言信商貿有限公(gong)司主營:山(shan)東(dong)廢舊汽車(che)配(pei)(pei)件(jian)(jian)回收服務(wu),青(qing)島數碼(ma)主控芯片回收價格(ge),青(qing)島大(da)量回收電子元(yuan)器(qi)件(jian)(jian)公(gong)司,山(shan)東(dong)汽車(che)零(ling)配(pei)(pei)件(jian)(jian)回收哪家好,汽車(che)零(ling)部(bu)件(jian)(jian)上門回收電話,工廠庫存電子元(yuan)件(jian)(jian)高(gao)價收購(gou)廠家,山(shan)東(dong)高(gao)檔(dang)汽車(che)發動(dong)機回收價格(ge),新能源汽車(che)配(pei)(pei)件(jian)(jian)回收公(gong)司、山(shan)東(dong)上門回收ic芯片服務(wu)等,聯系(xi)電話:1
2023-03-13 -
摘(zhai) 要(yao) :ODI是“境(jing)外(wai)直接(jie)投資”的英文縮(suo)寫,是指境(jing)內企(qi)業(ye)通過新設(she)、并購境(jing)外(wai)企(qi)業(ye)方式(shi),獲得(de)境(jing)外(wai)企(qi)業(ye)的所(suo)有權、控(kong)制(zhi)權、經營管理(li)權等(deng)權益。由(you)于ODI登記核準(zhun)制(zhi)度(du)涉及(ji)到內地資金(jin)向(xiang)外(wai)流出,因此(ci)必然需要(yao)相關政府(fu)部(bu)門的批準(zhun),這(zhe)些部(bu)門包括(kuo)商務(wu)部(bu)、發改(gai)委及(ji)銀(yin)行(xing)部(bu)門(銀(yin)行(xing)及(ji)外(wai)匯管理(li)局)。而這(zhe)些部(bu)門的主要(yao)審批
2023-03-09