Taking extensive investigation and research, comparison of similar projects, seriously functional analysis, multi-program comparison and choice.
同时广泛调查研究，比较同类项目，认真进行功能分析，多方案比 较和选择。
Taking extensive investigation and research, comparison of similar projects, seriously functional analysis, multi-program comparison and choice.
同时广泛调查研究，比较同类项目，认真进行功能分析，多方案比 较和选择。
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