A new diagnostic quantity-moisture helicity is derived from the moisture equation, and the difinition of helicity, and its influence factors are analyzed in details by the dimensional analysis.
构造了新的诊断量——水汽螺旋度，并对影响水汽螺旋度变化的因子做了分析。
With dispersed triplex evaporation and diffusion model and moisture transfer equation, process of evaporation and diffusion in a basin is simulated.
采用分散式的三层蒸散发模型和水分传递方程，模拟流域蒸散发过程。
The main source of moisture in the sealed environment is analyzed; the formula of moisture content and equation of equilibrium are given.
分析了密封环境气氛中水分的主要来源，给出其水分含量的计算公式和水分平衡方程。
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