本工程为地下人防工程，由于工程的特殊性，工程防水层采用结构自防水加柔性防水两道措施。
This project is underground civil air defense. Owing to particularity of the project, waterproof player of the project is adopted structural self? Waterproof adding flexible waterproof measure.
算例结果表明大柔性飞机的起落架设计有必要考虑机体结构弹性，并从全局出发，采用特殊的构造措施和优化设计技术。
From an overall point of view, structure deformation of airplane must be considered and optimization design must be used in landing gear design of a flexible airplane.
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