http://image.baidu.com/i?ct=503316480&z=0&tn=baiduimagedetail&ipn=d&cl=2&cm=1&sc=0&lm=-1&fr=ala2&pn=0&rn=1&di=53576853880&ln=1979&word=%BC%F5%CB%D9%B5%E7%BB%FA&objurl=http%3A%2F%2Fwww%2Ejiansu%2Eorg%2Fuploadpic%2Finfo%2Fzdcdzcl%5F201111016145622051%2Ejpg#pn0&-1&di53576853880&objURLhttp%3A%2F%2Fwww.jiansu.org%2Fuploadpic%2Finfo%2Fzdcdzcl_201111016145622051.jpg&fromURLippr_z2C%24qAzdH3FAzdH3Fooo_z%26e3B3twgf7_z%26e3B562AzdH3Ffvw_etjo_z%26e3Bwfr%3Ft1%3D9lbbm&W473&H355&T9120&S8&TPjpg 应当是电机减速器。 应该是加了减速器吧 没见过呢 大哥,我服你了
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