问题:在弹性力学里分析问题,要考虑静()、()和()三方面条件,分别建...
Saturday, September 17, 2022
Saturday, September 17, 2022
Saturday, September 17, 2022
问题:大多数聚合物熔体在任何条件下都是假塑性的,不符合牛顿定律()...
Sunday, September 11, 2022
问题:在集中力作用下的梁,变形后的最大挠度与梁的()的三次方成正比。...
Sunday, September 11, 2022
问题:铸铁试样在做压缩试验时,试样沿倾斜面破坏,说明铸铁的()。A、抗剪强度小于抗压强度B、抗压强度小于抗剪强度C、抗压强度小于抗拉强度D、抗拉强度小于抗压强度...
Sunday, January 14, 2024
Saturday, September 17, 2022
Saturday, September 17, 2022
问题:3DF中是否可以对结构单元批量处理?尤其是对梁板等被截为很多段的...
Monday, September 12, 2022
问题:3.小孔口应力集中现象中有两个特点:一是(),即孔附近的应力远大...
Saturday, September 17, 2022
问题:无限大地层中一源一汇存在时,地层中流体渗流的等势线为同心圆族。...
Sunday, September 11, 2022
Monday, September 12, 2022
问题:无限大地层等产量一源一汇生产时,其连线中点的渗流速度是最大的...
Monday, September 12, 2022
Friday, March 15, 2024
问题:Cl<sub>2</sub>分子的振动温度Θ<sup>v</su...
Monday, September 12, 2022
问题:某物体只受三个力的作用而处于平衡状态,已知此三力不互相平行,则此三力必()...
Thursday, July 6, 2023
Saturday, September 17, 2022
Saturday, September 17, 2022
问题:构件剪切变形时,围绕某一点截取的微小正六面体将变成平行六面体,相...
Sunday, September 11, 2022