Expounded in this paper are the development process,main technical parameters,structure,performance features and testing of the removable roof box cars.
阐述了活顶棚车的研制过程、主要技术参数、结构性能及试验情况。
To solve the problem of architectural shoring props,a new renovative column of architectural shoring props has been brought forward.
目的研究建筑用活顶柱的破坏机理、受力性能问题,合理确定其承载能力。
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