发布时间:2025-01-31 00:50:02
管道保温包含了其管件的保温量,但不包含阀门、法兰的保温量。阀门、法兰的保温量应另行计算。依据是定额解释、定额工程量计算规则。
某化学研究小组创新设计了铁的生锈实验并对铁锈成分进行测定实验1铁的快速生锈先在如图1玻璃管中注
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2025-01-31 00:50:02 2025-01-31 00:50:02 2025-01-31 00:50:02 2025-01-31 00:50:02 2025-01-31 00:50:02 2025-01-31 00:50:02