[{"data":1,"prerenderedAt":-1},["ShallowReactive",2],{"$fHQ5OgJpvQkkrPVcJ663F7OqcoIXG9asXlgSte-R87WI":3},{"answer":4,"createTime":5,"id":6,"options":7,"origin":12,"question":19,"related":20,"source":30,"type":31},[],"2023-05-16 12:24:47",12802722,[8,9,10,11],"能相交,也能相切","仅能相交,不能相切","仅能相切,不能相交","既不能相交,也不能相切",{"count":13,"courseId":14,"courseImg":15,"courseName":16,"workId":17,"workName":18},30,"ef4ea0fe1229ea468c9c72f178cb9081","https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002Ff40f13ac3f9ed4ec675f0b93d9d767ca.jpg","流体力学及流体机械原理","40925084fcd349538cda34fd242c3fcf","","流线与流线,在通常情况下",[21,32,41,49,58,67,70,79,88,97],{"answer":22,"createTime":5,"id":23,"options":24,"question":29,"source":30,"type":31},[],12802717,[25,26,27,28],"流动随时间按一定规律变化","各空间点上的运动要素不随时间变化","各过流断面的速度分布相同","迁移加速度为零","稳定(恒定)流动指的是","v1",0,{"answer":33,"createTime":5,"id":34,"options":35,"question":40,"source":30,"type":31},[],12802718,[36,37,38,39],"流线是直线","速度分布按直线变化","运动产生是一个空间坐标和时间变量的函数","运动参数不随时间变化的流动","一维(元)流动指的是",{"answer":42,"createTime":5,"id":43,"options":44,"question":48,"source":30,"type":31},[],12802719,[45,28,46,47],"当地加速度为零","向心加速度为零","合加速度为零","均匀流指的是",{"answer":50,"createTime":5,"id":51,"options":52,"question":57,"source":30,"type":31},[],12802720,[53,54,55,56],"等于零","等于常数","随时间变化而变化","与时间无关","稳定(恒定)流动中,流体质点的加速度",{"answer":59,"createTime":5,"id":60,"options":61,"question":66,"source":30,"type":31},[],12802721,[62,63,64,65],"稳定流动","不稳定流动","二维流动","三维流动","在( )流动中,流线和迹线重合",{"answer":68,"createTime":5,"id":6,"options":69,"question":19,"source":30,"type":31},[],[8,9,10,11],{"answer":71,"createTime":5,"id":72,"options":73,"question":78,"source":30,"type":31},[],12802723,[74,75,76,77],"直接","间接","不能","只在恒定时能","欧拉法( )描述流体质点的运动",{"answer":80,"createTime":5,"id":81,"options":82,"question":87,"source":30,"type":31},[],12802724,[83,84,85,86],"一定重合","一定不重合","特殊情况下可能重合","一定正交","非恒定流场中,迹线与流线",{"answer":89,"createTime":5,"id":90,"options":91,"question":96,"source":30,"type":31},[],12802725,[92,93,94,95],"迹线正交","流线正交","流线斜交","迹线斜交","过流断面是指与( )的横断面",{"answer":98,"createTime":5,"id":99,"options":100,"question":105,"source":30,"type":31},[],12802726,[101,102,103,104],"理想流体","实际流体","可压缩流体","不可压缩流体","一维流动的连续性方程UA=C成立的必要条件是"]