求翻译：开工：双方通过设计方案、首期工程款到位、工程技术交底等前期工作完成后，材料、施工人员到达施工现场开始运作视为开工。是什么意思？

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Operation: Both sides after the design proposal, the first period project funds arriving, the project technology give the low-down and so on earlier period completions of work, the material, the constructor arrive the job location to start to operate regard as the operation.

Start: through design, the first phase of the project in place, project technology gives the low-down the preliminary work is completed, materials, construction workers reached the construction site became operational as a start.

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