This paper describes the reasonable structure design and fabrication method of tower crane standard section to ensure its quality and fulfil the working requirements.
本文介绍了塔身标准节的合理的结构设计与加工方法，以确保塔身标准节的制造质量和满足使用要求。
The sources fulfil the demanded quality requirements.
源的质量达到了规定的要求。
The sources fulfil the demanded quality requirements.
源的质量达到了规定的要求。
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