But because of the limitation of detention means, the various bridge types and the completions of the structure, the evaluation work is always a difficult topic.
但由于桥梁的型式多样、结构复杂及检测手段的局限性，使之成为难以解决的科研课题。
The unique system hardware and software platform structure, can very good applies to prison, detention of such complex environment.
系统独特的硬件、软件平台架构，能很好的适用于监狱、看守所等复杂环境的应用。
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