发布时间:2025-01-20 03:35:02
弯曲弹性模量应当是抗弯模量吧?与形状有关,是管状吗?
铝合金的弹性模量: 20度时为69~71(x10^3N/mm2)(GB/T 20801.2-2008 表B。3)
园管状抗弯模量: Wx0=0.0982(d^4-di^4)/d (d- 外径, di-内径)
其它形状计算详见建筑结构静力计算手册(第二版) 表1-6
美的空调KFR-72LW/DY-IA(E2)的内机尺寸是多少
2025-01-20 03:35:02 2025-01-20 03:35:02 2025-01-20 03:35:02 2025-01-20 03:35:02 2025-01-20 03:35:02 2025-01-20 03:35:02 2025-01-20 03:35:02 2025-01-20 03:35:02 2025-01-20 03:35:02 2025-01-20 03:35:02 2025-01-20 03:35:02客厅吊灯预留位置有偏差灯已经按照中心点装好了请问预留的位置怎么处理
2025-01-20 03:35:02 2025-01-20 03:35:02 2025-01-20 03:35:02 2025-01-20 03:35:02 2025-01-20 03:35:02 2025-01-20 03:35:02怡宝饮用纯净水辩真假之包装纸篇怎么通过辨别包装纸来辨别真假怡宝最好附上图真假对比图说明清
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