名词
中文翻译：初步估计
同义词：
['estimate', 'preliminary calculation']
例句：
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1.The company is conducting a preliminary estimate of the project costs.
该公司正在对项目成本进行初步估计。
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2. The government has made a preliminary estimate of the population growth rate.
政府已经对人口增长率进行了初步估计。
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3.The engineer made a preliminary estimate of the time required for the construction.
工程师对施工所需时间进行了初步估计。