黑箱模型（Black box）或称经验模型，指一些其内部规律还很少为人们所知的现象。如生命科学、社会科学等方面的问题。但由于因素众多、关系复杂，也可简化为灰箱模型来研究。
传统的黑箱模型和集总式模型没有考虑这种影响。
These effects were not taken into consideration by the traditional black box models and lumped models.
通过黑箱模型，确定了COD经包气带地层的变化量。
By using the black? Box model, the variation quantity of COD passing the aeration zone layer is determined.
分别建立了四条流域水土保持作用下的降水产流综合模型—黑箱模型。
With these proposed methods, comprehensive precipitation-runoff models respectively have been developed for the four catchments.
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