How vulnerable is your cash flow to changes in any parameter of your calculations?
如果计算参数变化，你的流动资金会有多么不堪一击？
The permeability of a soil is important for calculations of underground flow.
土的渗透性对于地下液流的计算很为重要。
The permeability of a soil is important for calculations of underground flow.
土的渗透性对于地下液流的计算很为重要。
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