发布时间:2025-02-07 09:40:45
冰箱前面两个底脚(螺钉)用开口为27mm的扳手调节,左后底脚(轮子)用直径8毫米的内六角扳手插到前底脚旁的螺丝口处调节,右后底脚无法调节。
梁预拱度二次抛物线的计算 30米t梁的预拱度用二次抛物线怎么计算 设计图纸预拱度是2cm
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