We achieve expected purpose through design, exploration and constructional practice.
通过设计探讨及施工实践，达到了预期的目的。
Improved new constructional design, which is easy to operation with high performance and convenient.
新型改良结构设计，增加使用性能，操作时更为便捷。
Improved new constructional design, which is easy to operation with high performance and convenient.
新型改良结构设计，增加使用性能，操作时更为便捷。
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