This paper describes general structure design and structure load test of girder type railway bridge erecting machine with single simple supported beam and overhead transversely travelling trolley.
本文介绍我国一种新型单梁简支空中横移梁式铁路架桥机的总体结构设计及其结构荷载试验。
The double-clad fiber laser has the advantages of simple structure and high reliability, high output power, high conversion efficiency, high beam quality.
它具有结构简单紧凑、输出功率高、稳定可靠、光电转换效率高、光束质量好等优点。
Prebent combined simple supported beam, combining steel plate with concrete, is a new type beam structure. This paper introduces the basic conception, design and construction of this combined beam.
预弯组合简支梁，是钢板与混凝土相结合的一种新型梁式结构，本文介绍该组合梁的基本构思及设计、施工等内容。
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