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。
2
We have demonstrated Faraday longitudinal tension and side pressure with some examples and briefly introduced its application.
对法拉第纵张力和侧压力作出了证明，通过例子进行了验证，并简要阐述了它的应用。
3
The existing highway design criterion only takes setting pavement longitudinal grade, side ditch and drainage ditch into account in order to eliminate surface water.