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 ）。
The normal ventilation is upset, with profound effects on the acid-based balance of the blood.
正常的呼吸被打乱，对血液的酸碱度平衡有深刻的作用。
The floor design pays attention to the degree of comfort, the arrangement stemming from balance and quality, ensuring the requirements for sunshine, ventilation and natural light.
套型设计注重舒适度，板式布局以均好性为出发点，保证各住户对日照、通风、采光的要求。
The balance shoes design thoroughly takes account of ventilation property of shoes and make the design of multiway perforating on foot roof liner.
本平衡鞋设计，充分考虑鞋的透气性，进行了脚顶衬料多向打孔的设计。
The balance shoes design thoroughly takes account of ventilation property of shoes and make the design of multiway perforating on foot roof liner.
本平衡鞋设计，充分考虑鞋的透气性，进行了脚顶衬料多向打孔的设计。
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