在海洋环境中，有许多的金属构件经常处于海水干湿交替状态下，如船舶压载水舱。
Seawater wet-dry cycling is a common corrosion condition in the ocean industry, such as water ballast tank condition.
滑坡的处理应根据滑坡的不同特点采用相应的处理方法，常用的措施有排水处理、减载与反压、土体改良法、支挡结构抗滑等方法。
The proper treatment measures, including drainage, unload, improvement of the earth and retaining project, should be taken according to the characteristic of the land-slide.
因此为了设计出运行稳定、安全、可靠的塔架，分析计算塔架受拉、压、扭转力和风载作用下的特性是有必要的。
Therefore, it is necessary to analyze and calculate the performance of the tower when it is exerted pull, press, torsion and wind load in order to design a stable, secure and reliable tower.
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