empirical data短语⁹⁶⁶⁷⁷⁺⁶ 基本例句 经验数据公式 So we also calculate the carbon footprint based on industry averages, which are derived from various empirical data sources. 我们仍然基于行业的平均水平计算碳排放轨迹，这些平均数值来自各种数据源。 ibm There are ways around the lack of empirical data on malaria; there are ways to model and impute data that are missing. 可以设法克服疟疾历史数据不足的问题，也可设法建立模型和推定缺失数据。 who