A important factor affecting heat transfer ability of doublemetal rolling fin tubes is gas-side heat transfer coefficient.
影响双金属轧片式翅片管的传热性能的一个重要因素是管外气体一侧的对流换热系数。
2
The article introduces property and installation of new motor general protector with electronic re - lay substituting for doublemetal plate relay.
介绍以电子式热继电器取代双金属片式热继电器的新型电动机综合保护器的性能特点以及安装接线方法。
3
Big concrete blocks and doublemetal posts in the atrium's corners henceforth support the dome and all the concrete floors that extend around the edges on five levels.