[{"data":1,"prerenderedAt":-1},["ShallowReactive",2],{"$f-dIugdzD698Z4d-Z1-ZbHsp6hTSJ1N2gnM-z0zuFz3s":3},{"answer":4,"createTime":5,"id":6,"options":7,"origin":11,"question":17,"related":18,"source":27,"type":39},[],"2023-05-08 09:32:58",81197287,[8,9,10],"关联性","封闭性","单一性",{"courseId":12,"courseImg":13,"courseName":14,"workId":15,"workName":16},"1000015270","https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002F5783cc53bef24ccec87b26470d7ca5e9.png","机械制造技术基础","23919349","机械制造技术基础教程考试","基本的工艺尺寸链的特征有: ( )",[19,29,40,49,57,62,71,80,89,98],{"answer":20,"createTime":5,"id":21,"options":22,"question":26,"source":27,"type":28},[],81197257,[23,24,25],"先精后粗","先粗后精","粗精同时选择","制订机械加工工艺规程时,选择基准的顺序是:( )","v2",0,{"answer":30,"createTime":5,"id":31,"options":32,"question":38,"source":27,"type":39},[],81197258,[33,34,35,36,37],"保证相互位置要求原则","余量均匀分配原则","余量足够原则","不重复使用原则","便于工件装夹原则","制订机械加工工艺规程时,选择粗基准的原则主要有哪些?( )",1,{"answer":41,"createTime":5,"id":42,"options":43,"question":48,"source":27,"type":28},[],81197260,[44,45,46,47],"铸件","锻件","焊接件","轧制件","单件小批量生产形状复杂的大型零件时,其毛坯通常选用:( )",{"answer":50,"createTime":5,"id":51,"options":52,"question":55,"source":27,"type":56},[],81197262,[53,54],"对","错","粗基准不重复使用原则是指粗基准只允许使用一次. ( )",3,{"answer":58,"createTime":5,"id":59,"options":60,"question":61,"source":27,"type":56},[],81197266,[53,54],"零件结构工艺性是指所设计的零件在能满足使用要求的前提下结构简单. ( )",{"answer":63,"createTime":5,"id":64,"options":65,"question":70,"source":27,"type":39},[],81197273,[66,67,68,69],"工序基准面和定位元件","定位基准面和定位元件","夹紧机构","刚度","只有在( )精度很高时,过定位才允许使用,且有利于增强工件的",{"answer":72,"createTime":5,"id":73,"options":74,"question":79,"source":27,"type":39},[],81197274,[75,76,77,78],"固定式","铰链式","可卸式","悬挂式","钻模板类型有( )",{"answer":81,"createTime":5,"id":82,"options":83,"question":88,"source":27,"type":28},[],81197278,[84,85,86,87],"γo ,λs,Kr","γo,λs,αo","λs,Kr ,αo","γo,Kr ,αo","在刀具角度中, ( )是有正负号的",{"answer":90,"createTime":5,"id":91,"options":92,"question":97,"source":27,"type":28},[],81197282,[93,94,95,96],"切深抗力","进给抗力","主切削力","合成切削力","在车削细长轴时,为了减小工件的变形和振动,故采用较大主偏角的车刀进行切削,以减小( )",{"answer":99,"createTime":5,"id":6,"options":100,"question":17,"source":27,"type":39},[],[8,9,10]]