The relative position between the diffusion blade and the volute tongue has influence on the distribution of diffuser flow field and the position is regulated suitably to reduce the hydraulic loss.
扩压叶片与隔舌相对位置对扩散段流场的分布有影响，适当调整可以减小水力损失。
The results show that the fracture mode of blade is vibration fatigue and the main cause of initiation of fatigue crack is the mismatch between rabbet and tongue-and-groove.
结果表明，叶片的断裂模式为振动疲劳，叶片榫头与榫槽配合不当是萌生疲劳裂纹的主要原因。
This tongue shall have all the bone, glands, root and underlying base or blade meat trim removed and be almost entirely free of fat.
剔除所有的舌骨、腺体组织、舌根和舌底或舌叶下之赘肉，且必须几乎不带任何脂肪。
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