The crashworthiness of grass fiber reinforced epoxy tubes as collision bumper is studied and a comparison of absorption property with aluminum alloy tubes is made.
研究了玻璃纤维增强环氧圆柱管作为缓冲装置的撞击吸能特性，并与铝合金圆柱管的吸能特性进行比较。
The comparison of heat transfer performance with three different fin spacing, three different Numbers of tube rows and three different Numbers of tubes under three constraints is carried out.
然后通过三种限制条件对不同翅片间距、不同管排数和不同管数下的换热板芯的传热性能进行了比较。
This paper mainly discusses the comparison between the general designs in water wall, roof tubes and low temperature superheaters of the structure of Japanese 350mw boilers and Our 300mw boilers.
从水冷壁、顶棚管、水平低温过热器等三个方面对日本350m w锅炉与国内300mw锅炉的结构设计进行了分析与比较研究。
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