发布时间:2025-01-30 04:28:18
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有限元材料库的参数为:45号钢密度7890kg/m3,泊松比0.269,杨氏模量209000GP.
先锋油汀用过二、三年后暖气片温度不高,开关旋钮调好一直没动过温度
2025-01-30 04:28:18 2025-01-30 04:28:18 2025-01-30 04:28:18 2025-01-30 04:28:18 2025-01-30 04:28:18 2025-01-30 04:28:18 2025-01-30 04:28:18 2025-01-30 04:28:18 2025-01-30 04:28:18 2025-01-30 04:28:18请问6楼阁楼上面刚上楼梯的横梁撞头一共四个钢筋能否砸掉两个这样就不撞头了会不会有危险
2025-01-30 04:28:18 2025-01-30 04:28:18 2025-01-30 04:28:18 2025-01-30 04:28:18 2025-01-30 04:28:18 2025-01-30 04:28:18 2025-01-30 04:28:18 2025-01-30 04:28:18 2025-01-30 04:28:18 2025-01-30 04:28:18 2025-01-30 04:28:18 2025-01-30 04:28:18 2025-01-30 04:28:18