在这种状况下该轨道梁是否具有足够的承载能力，成为能否增加一台同吨位的桥式起重机的关键。
Whether the track beam have enough loading ability or not in this kind of case become the key whether the same tonnage bridge crane can be increased.
桥式起重机是桥架在高架轨道上运行的一种桥架型起重机，又称天车。
Overhead bridge crane is a bridge in the orbit of a bridge-type crane, also known as crane.
服务项目包括：电动单梁桥式起重机的供货；配套地基、立柱、行车梁及轨道滑线附属件的供货及施工。
The services including: supplying electric single girder overhead cranes, and the supply as well as installation of foundation, column, H-beam , rail busbar and accessories.
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