发布时间:2025-01-30 05:57:58
聚氨酯泡沫保温套定额方法:
1、管道采用聚氨酯泡沫喷涂发泡保温时应该套《刷油、防腐蚀、绝热工程》册中‘绝热工程’章节内‘聚氨酯泡沫喷涂发泡安装’的‘管道’子目;
2、管道采用聚氨脂管壳进行保温时,则可以借套‘绝热工程’章节内‘泡沫塑料瓦块安装’的相对应管道规格以及相对应厚度的定额子目,据实输入聚氨脂管壳(瓦块)的主材名称、规格或单价即可。
晶体管超外差式收音机(X—921型收音机)每部分的作用及原理
2025-01-30 05:57:58 2025-01-30 05:57:58 2025-01-30 05:57:58 2025-01-30 05:57:58 2025-01-30 05:57:58 2025-01-30 05:57:58 2025-01-30 05:57:58 2025-01-30 05:57:58 2025-01-30 05:57:58 2025-01-30 05:57:58tonze天际电饭煲迷你12l陶瓷内胆煮粥煮饭煲汤智能家用电饭锅适用对象
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