The complicated flow structures of an unsteady supersonic jet behind the bow shock are analyzed and a new formation mechanism of the unsteady effect of the shock shock interference flow is proposed.
分析弓形激波后超音速“喷流”的流动结构及其非定常效应的形成机制，提出一种新的激波碰撞干扰流动的非定常形成机理。
The effect of bow wave to electro-magnetizing and the methods to impr ov e the reliability of electro-magnetizing equipment are discussed.
文中讨论了涡流效应对充磁的影响，改善充磁机可靠性的方法。
Methods with fragments of the back teeth bow orthodontic traction treatment between technical joint jaws in 31 cases of patients with mandibular Angle fracture and watch curative effect.
方法在后牙用片段弓正畸技术联合颌间牵引治疗31例下颌角骨折的患者并观察疗效。
Methods with fragments of the back teeth bow orthodontic traction treatment between technical joint jaws in 31 cases of patients with mandibular Angle fracture and watch curative effect.
方法在后牙用片段弓正畸技术联合颌间牵引治疗31例下颌角骨折的患者并观察疗效。
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