[{"data":1,"prerenderedAt":-1},["ShallowReactive",2],{"$faE_ZeyTQSthSQGg_mKAHCGlrN2JXa6blDieWYFxox2E":3},{"answer":4,"createTime":5,"id":6,"options":7,"origin":12,"question":19,"related":20,"source":31,"type":32},[],"2025-06-04 15:09:10",193992249,[8,9,10,11],"介质相互接触","介质静止","介质为固体","介质为液体",{"count":13,"courseId":14,"courseImg":15,"courseName":16,"workId":17,"workName":18},142,"53e1d2ef4961cca8eea3e23969ad2cb9","https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002F03a579384a6dc297c89809b582fcc767.png","默认课程","35d426b8316f4311938898ec22ec4b5a","随堂测试2","发生导热现象的必要条件是",[21,33,42,51,60,69,72,81,90,99],{"answer":22,"createTime":23,"id":24,"options":25,"question":30,"source":31,"type":32},[],"2025-06-04 15:09:09",193992228,[26,27,28,29],"金属固体&gt;非金属固体&gt;液体&gt;气体","非金属固体&gt;金属固体&gt;气体&gt;液体","金属固体&gt;非金属固体&gt;气体&gt;液体","非金属固体&gt;金属固体&gt;液体&gt;气体","一般情况下,导热系数的大小关系应为","v1",0,{"answer":34,"createTime":23,"id":35,"options":36,"question":41,"source":31,"type":32},[],193992230,[37,38,39,40],"可见光","红外线","X射线","紫外线","下列不属于常见热辐射波长范围的是",{"answer":43,"createTime":23,"id":44,"options":45,"question":50,"source":31,"type":32},[],193992234,[46,47,48,49],"1.34W\u002F(m2&bull;K),20.9W","1.34W\u002F(m2&bull;K),37.5W","0.746W\u002F(m2&bull;K),37.5W","0.746W\u002F(m2&bull;K),20.9W","1平方米平壁厚度360毫米,室外温度-10℃,室内温度18℃,平壁导热系数0.61W\u002F(m&bull;K),内壁表面传热系数为8.7W\u002F(m2&bull;K),外壁表面传热系数为24.5W\u002F(m2&bull;K),总传热系数和散热量分别是",{"answer":52,"createTime":23,"id":53,"options":54,"question":59,"source":31,"type":32},[],193992238,[55,56,57,58],"q=h&Phi;","q=&Phi;A","q=&Phi;\u002FA","q=&lambda;&Phi;","热流密度q与热流量&Phi;的关系为(以下公式中A为传热面积,&lambda;为导热系数,h为对流传热系数)",{"answer":61,"createTime":5,"id":62,"options":63,"question":68,"source":31,"type":32},[],193992246,[64,65,66,67],"120W","0.167K\u002FW","8W\u002Fm2","8W","长5米,高3米,厚度250毫米的墙板,导热系数为0.1W\u002F(m&bull;K),冬季室内外表面温度分别为15℃和-5℃,求通过该墙板的热损失总量是多少",{"answer":70,"createTime":5,"id":6,"options":71,"question":19,"source":31,"type":32},[],[8,9,10,11],{"answer":73,"createTime":5,"id":74,"options":75,"question":80,"source":31,"type":32},[],193992254,[76,77,78,79],"0.01(K&middot;m2)\u002FW","100W\u002F(m2&middot;K)","100W\u002FK","0.01K\u002FW","若已知表面传热系数为50W\u002F(m2&middot;K),表面面积2平方米,则对流换热热阻为多少",{"answer":82,"createTime":5,"id":83,"options":84,"question":89,"source":31,"type":32},[],193992258,[85,86,87,88],"法线方向","45℃斜向","切线方向","任意方向","温度梯度表示等温线什么方向上的温度变化率",{"answer":91,"createTime":5,"id":92,"options":93,"question":98,"source":31,"type":32},[],193992263,[94,95,96,97],"定性描述导热规律","计算导热系数","计算导热热流密度","求解温度场","建立导热微分方程的直接目的是",{"answer":100,"createTime":101,"id":102,"options":103,"question":108,"source":31,"type":32},[],"2025-06-04 15:09:11",193992268,[104,105,106,107],"10、40、70","70、40、10","20、40、60","60、40、20","在稳态导热中,已知三层平壁的内外表面温差为120℃,热阻之比为1:2:3,则各层的温度降为(单位℃)"]