The local resistance coefficient at intersecting pipes corner is determined usually by experiments.
管道相交处的局部阻力系数通常由实验确定。
The local resistance coefficient of the perforated wall and the fixed fins are determined as well as the resistance of single—blind outlet, which is the substitution of the perforated wall if needed.
实验测定了多孔砖墙与固定格栅的局部阻力系数，同时也测定了可替代多孔砖墙的单层百叶的局部阻力系数。
The local resistance coefficient of the perforated wall and the fixed fins are determined as well as the resistance of single—blind outlet, which is the substitution of the perforated wall if needed.
实验测定了多孔砖墙与固定格栅的局部阻力系数，同时也测定了可替代多孔砖墙的单层百叶的局部阻力系数。
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