介绍顶升气囊、行走气囊、助浮气囊在工程中应用的优点，重点介绍沉箱顶升的几种主要工艺。
The advantages of hoisting gasbag, moving gasbag and floating gasbag in engineering, esp. the main technology of caisson hoisting, are introduced.
介绍顶升气囊、行走气囊、助浮气囊在工程中应用的优点，重点介绍沉箱顶升的几种主要工艺。
The advantages of hoisting gasbag, moving gasbag and floating gasbag in engineering, esp. the main technology of caisson hoisting, are introduced.
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