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13165134678升(sheng)降是一種(zhong)載人裝置,其安(an)全性非(fei)常重(zhong)要。因此,變速(su)器(qi)(qi)具有三重(zhong)安(an)全保護功能(neng):帶制動(dong)(dong)(dong)器(qi)(qi)的(de)電(dian)動(dong)(dong)(dong)機、帶制動(dong)(dong)(dong)器(qi)(qi)的(de)電(dian)機與(yu)減速(su)器(qi)(qi)之間的(de)聯(lian)軸器(qi)(qi)和(he)具有自鎖功能(neng)的(de)蝸(gua)輪蝸(gua)桿減速(su)機在制動(dong)(dong)(dong)失 …
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