Hydraulic resistance coefficient formulas are derived according to a great number of flume experiments and relative theory analysis. 通過(guò)系列水槽試驗和相關(guān)理論分析，提出了十字片梅花加糙的有效水深和水力阻力系數計算公式。
The standard value of ventilation resistance and coefficient of frictional resistance is very significant to the ventilation management of the mine as the basic data. 標準風(fēng)阻值和標準摩擦阻力系數值作為礦井通風(fēng)技術(shù)管理的基本資料對礦井通風(fēng)管理具有重要意義。
