[{"data":1,"prerenderedAt":-1},["ShallowReactive",2],{"$fdBk271xTF49gUvSB61oLewSrTPdJ6E7w7_ran_mfS9Y":3},{"answer":4,"createTime":5,"id":6,"options":7,"origin":12,"question":16,"related":17,"source":28,"type":29},[],"2023-10-03 17:06:49",98455192,[8,9,10,11],"成型电极","脉冲电源","数控系统","绝缘介质",{"courseId":13,"courseImg":14,"courseName":15},"6ff62bf2880a7c52e0e324d092cc1088","https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002F5aa1e010016a00d72d96151e16aafd59.png","工程训练C","在下列选项中选出不属于电火花线切割加工所需的条件()",[18,30,40,49,52,61,71,81,90,99],{"answer":19,"createTime":20,"id":21,"options":22,"question":27,"source":28,"type":29},[],"2023-10-03 17:12:03",98455181,[23,24,25,26],"其他曲线","无断点、自交点、锯齿的光滑曲线","一条封闭曲线","不封闭曲线","二维创新设计制作中,二维图形矢量化后要进行必要的编辑,是为了使图形成为()","v1",0,{"answer":31,"createTime":32,"id":33,"options":34,"question":39,"source":28,"type":29},[],"2023-09-26 22:18:29",98455183,[35,36,37,38],"机械能","化学能","光热能","电热能","激光加工所用的能量是()",{"answer":41,"createTime":32,"id":42,"options":43,"question":48,"source":28,"type":29},[],98455187,[44,45,46,47],"导电","排屑","冷却","绝缘","下列不是线切割工作液作用的是()",{"answer":50,"createTime":5,"id":6,"options":51,"question":16,"source":28,"type":29},[],[8,9,10,11],{"answer":53,"createTime":20,"id":54,"options":55,"question":60,"source":28,"type":29},[],98455196,[56,57,58,59],"工件接正极、电极接正极","工件接负极、电极接负极","工件接负极、电极接正极","工件接正极、电极接负极",""正极性"加工指的是()",{"answer":62,"createTime":63,"id":64,"options":65,"question":70,"source":28,"type":29},[],"2023-10-06 11:52:46",98455199,[66,67,68,69],"当机床电器发生火灾时,应用四氯化碳灭火器灭火","线切割机床在加工过程中产生的气体对操作者的健康没有影响","由于线切割机床在加工过程中的放电电压不高,所以加工中可以用手接触工件或机床工作台","当机床电器发生火灾时,可以用水对其进行灭火","有关线切割机床安全操作方面,下列说法正确的是()",{"answer":72,"createTime":73,"id":74,"options":75,"question":80,"source":28,"type":29},[],"2023-09-27 22:25:17",98570629,[76,77,78,79],"成形刀、样板","阶梯孔、阶梯轴","塑料模中的型腔","任何硬度、高熔点包括经热处理的可导电的金属材料","电火花线切割加工的对象有()",{"answer":82,"createTime":73,"id":83,"options":84,"question":89,"source":28,"type":29},[],98570631,[85,86,87,88],"导电性好","熔点高","导热性好","硬度大","对工具电极材料的要求,下列说法不正确的是()",{"answer":91,"createTime":63,"id":92,"options":93,"question":98,"source":28,"type":29},[],98570632,[94,95,96,97],"熔化凝固层","热影响层","电镀层","显微裂纹","碳钢用电火花成形加工后,表面的"白亮层"是()",{"answer":100,"createTime":5,"id":101,"options":102,"question":107,"source":28,"type":29},[],98839249,[103,104,105,106],"非接触式加工","接触式加工","增材制造","冷加工","电火花加工属于()"]