发布时间:2025-01-24 11:35:42
仅简述如下:
1、屋顶是屋盖的俗称、统称。有平屋面和坡屋面,坡屋面又有单坡、两坡、四坡;
2、屋顶的作用简单说:遮风避雨防寒隔热躲避环境不良气候、及抵御野兽外物敌人侵害;
3、平屋面构造:屋面梁板结构层、各种功用的构造层、排雨及保护面层;
坡屋面构造:屋架、檩条、椽子、面板(或有防水层)、挂瓦条、瓦板。
帮忙设计一份婚宴菜单写明菜的材料和价格一桌10人每桌1000元福建
2025-01-24 11:35:42 2025-01-24 11:35:42 2025-01-24 11:35:42 2025-01-24 11:35:42 2025-01-24 11:35:42 2025-01-24 11:35:42 2025-01-24 11:35:42 2025-01-24 11:35:42 2025-01-24 11:35:42 2025-01-24 11:35:42 2025-01-24 11:35:42 2025-01-24 11:35:42 2025-01-24 11:35:42 2025-01-24 11:35:42 2025-01-24 11:35:42 2025-01-24 11:35:42 2025-01-24 11:35:42 2025-01-24 11:35:42 2025-01-24 11:35:42 2025-01-24 11:35:42 2025-01-24 11:35:42 2025-01-24 11:35:42 2025-01-24 11:35:42 2025-01-24 11:35:42