ventilation hole

基本解释

The relation is an index one between the relative air pressure and the relative diameter of ventilation hole at the initial section of level tunnel.
水平旋流洞起始断面的相对真空度与相对通气孔直径的关系为指数关系；
In addition, the size distribution room ventilation hole performance, lighting performance, kitchen layout, with pipelines, storage space must have reasonable.
另外，房间的面积分配、通风透气性能、采光性能、厨卫布置安排、管线配合、储藏空间等都要具有合理性。
The test results show that, increasing inlet flux and decreasing width of ventilation hole within a scale are main ways to improve the heat exchange performance of standard chassis.
结果表明，在一定范围内增加机柜进气流量和减小通风孔尺寸可改善机柜通风换热性能。