The reinforcing rails of the bottom structure in dumping station for side bottom dumping cars occasionally drop off during operation in many mines.
底侧卸式矿车卸载站在一些矿山的使用中，出现底部结构加固钢轨脱落现象。
Endurance cracks may appear in the hull structure at different ship-ages for some ships, especially at the vessel bottom and the longitudinal bone on board side.
有些船舶在不同的船龄阶段，在船体结构上出现疲劳裂纹，特别是在船底、舷侧纵骨中较为突出。
The determination of tank number includes the calculation of production cycle and tank number. The design of tank structure includes bottom gradient, tank reinforcement and air pumping from tank side.
缸体数量的确定包括计算生产周期和计算缸体数量，缸体结构的设计包括底部倾斜、缸体加强、缸边抽气。
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