发布时间:2025-01-18 11:51:19
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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.
给一个朋友家装修了家,不好意思张口向他要钱,可他也不吭气,该怎么办
2025-01-18 11:51:19 2025-01-18 11:51:19 2025-01-18 11:51:19 2025-01-18 11:51:19 2025-01-18 11:51:19 2025-01-18 11:51:19 2025-01-18 11:51:19 2025-01-18 11:51:19刚装修好的房子急于入住买10个大风扇整天吹是不是就可以避开甲醛危害
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