[{"data":1,"prerenderedAt":-1},["ShallowReactive",2],{"$fHUfkLtcS-o0lkdiGKcuuWS8zt2DfrxT-5S8dlpT_xwc":3},{"answer":4,"createTime":5,"id":6,"options":7,"origin":11,"question":15,"related":16,"source":25,"type":26},[],"2023-11-08 19:08:52",104363312,[8,9,10],"增大","不变","减小",{"courseId":12,"courseImg":13,"courseName":14},"c48e5131d33af34bd61f3baced3c741e","https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002Ff28541b19fc85f01f23069cfadf80a34.jpg","机械工程基础（金属工艺学）第四期","车削外圆表面时,刀杆与工件回转轴线不垂直,若刀杆偏左,则工作主偏角( )",[17,27,35,43,46,54,62,67,75,84],{"answer":18,"createTime":5,"id":19,"options":20,"question":24,"source":25,"type":26},[],104363304,[21,22,23],"粗加工","半精加工","精加工","扩孔主要用于孔的","v1",0,{"answer":28,"createTime":5,"id":29,"options":30,"question":34,"source":25,"type":26},[],104363306,[31,32,33],"钻&rarr;粗镗&rarr;精镗","钻&rarr;扩&rarr;镗","钻&rarr;扩&rarr;拉","大批大量生产盘类零件上的ϕ60H7、Ra0.8&mu;m的通孔,合理的加工方案()",{"answer":36,"createTime":5,"id":37,"options":38,"question":42,"source":25,"type":26},[],104363308,[39,40,41],"之前","之后","之间","淬火一般安排在切削加工( )进行",{"answer":44,"createTime":5,"id":6,"options":45,"question":15,"source":25,"type":26},[],[8,9,10],{"answer":47,"createTime":5,"id":48,"options":49,"question":53,"source":25,"type":26},[],104363316,[50,51,52],"刨削","铣削","拉削","单件小批生产中,加工导轨面,应采用( )",{"answer":55,"createTime":5,"id":56,"options":57,"question":61,"source":25,"type":26},[],104363318,[58,59,60],"待加工表面","已加工表面","过渡表面","车削时,切削速度 .式中,为工件( )的直径",{"answer":63,"createTime":5,"id":64,"options":65,"question":66,"source":25,"type":26},[],104363320,[8,9,10],"车削外圆表面时,刀杆与工件回转轴线不垂直,若刀杆偏左,则工作副偏角( )",{"answer":68,"createTime":5,"id":69,"options":70,"question":74,"source":25,"type":26},[],104363322,[71,72,73],"普通","优质","高级优质","T8A钢属于( )碳素工具钢",{"answer":76,"createTime":77,"id":78,"options":79,"question":83,"source":25,"type":26},[],"2023-11-08 19:08:53",104363327,[80,81,82],"厚大处","薄壁处","最后凝固的部位","收缩较大、凝固温度范围较小的合金,如铸钢、碳硅含量低的灰铸铁、铝、青铜等合金以及壁厚差别较大的铸件,常采用( )凝固原则",{"answer":85,"createTime":77,"id":86,"options":87,"question":92,"source":25,"type":26},[],104363331,[88,89,90,91],"固溶体","金属混合物","机械混合物","单项组织金属","莱氏体是一种( )"]