It summarizes the basic rules of ventilation balance in longtan hydropower station’s underground houses: under the condition of mechanical ventilation , the air-volume distribution in not balanceable, and the ventilation balance will change with the variation of equipments run-condition .
在各个阶段的模型试验的基础上,主要对洞室群的风量分配规律进行了分析,得出了龙滩水电站风量平衡的基本规律:在热态试验条件下,龙滩水电站洞室群的风量分配是不均衡的,并且,其风量分配关系随机组运行工况的改变有较大的改变。
参考来源 - 龙滩地下水电站全厂机械通风（空调）模型试验研究·2,447,543篇论文数据，部分数据来源于NoteExpress
First, the optimum balance of mechanical and natural ventilation is estimated and used to determine the maximum potential saving it could give when compared with natural ventilation alone.
首先，人们对机械通风和自然通风的最佳平衡进行了预测，当与只使用自然通风相比较时，用它来决定机械通风系统能够给予的最大潜在储量。
Widely used for electrical rotors, machine tool spindle electric tools, such as rotary ventilation her body balance calibration.
广泛应用于电机转子、电动工具机床主轴、通风设备等旋转体工件平衡校正。
Results:As compared with TPN group, nitrogen balance was increased and mechanical ventilation time and treatment cost were decreased in EN group ( P <0.05).
结果：EN组氮平衡高于TPN组，机械通气时间、临床费用低于TPN组，组间差异均有显著性（P <0 .0 5 ）。
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