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- sound radiating field 辐射声场
- Now with sound radiating equally in each direction, the speakers become invisible, only the sound emanating from them remains. 由于声音向各个方向均匀发散,因此人们只会听到它发出的声音,而很难注意到它的方位。
- There was a safety distance of 5 cm out of regular radiation field. 该点距常规盆腔放射照野边缘有5cm的安全距离。
- Another important quantity describing the radiation field is its intensity. 还有一个描述辐射场的重要物理量是辐射强度。
- Electromagnetic pulse radiating field 电磁脉冲辐射场
- In this paper, the effect of disc muffler on vibration and sound radiation of worm shell is discussed. 摘要探讨了圆盘型进气消声器对蜗壳振动和声辐射的影响。
- The vibration and sound radiation behaviors of the stem of submarine with rudder and vane are studied. 摘要针对带有舵翼的水下航行器尾部结构模型,研究舵翼对水下航行器尾部的振动及声辐射的影响。
- An atom on an excited upper level can execute a downward transition not just spontaneously but also when photons of the radiation field surrounding the atomic interact with it. 处在较高的激发态上的原子不只可以自发地而且可以在它与原子系统周围辐射场的光子相互作用时发生向下的跃迁。
- The material origin of the time rate of change of radiant reacting force is the radiation field. 辐射反作用力变率的物质来源是带电粒子的辐射场。
- In order to reduce sound radiation of a structure, the method of Active Structural Acoustic Control (ASAC) was developed in the 1980s. 自八十年代后期以来,为了更为有效地降低结构声辐射,人们提出了主动结构声学控制(ASAC)。
- The integrated protection method can avoid false action of the radio fuze in UWS-HPM radiation field. 采用综合防护加固方法可使引信在超宽谱高功率微波辐照下不再产生误动作,达到了防护加固的目的。
- The singular integration will affect the precision of the result while the Boundary Element Method (BEM) is used in calculating sound radiation. 边界元法应用于计算辐射声场时,由于奇异积分的存在,会影响到计算结果的精度。
- The ability of DCI to simulating the High Intensity Radiated field and the valid frequency range of DCI are analyzed. 文中一方面从理论上分析了直接电流注入技术及其模拟测试装置,评价了直接电流注入技术代替自由场照射的可行性;
- The longitudinal vibration of shaft-line is very important in research of the sound radiated from the hull induced by propeller and shaft-line. 轴系的纵向振动在螺旋桨轴系激励艇体纵向振动声辐射问题分析中具有重要地位。
- During the normal storage operation, the radiation field is a slowly changing field. 在正常储存束流阶段,辐射场是一个稳恒的慢变化场,辐射水平正比于储存的束流强度;
- The current study is to investigate the relationship between the sound radiation and enclosure vibration by using a laser vibrometer. 利用激光测振仪,测试了箱体振动速度随频率的变化,分析了前几个振动模态的声辐射能力。
- In the hard nonlinear regime, the radiation field is characterized by continuous chaotic behavior. 在硬非线性区域,辐射场表现为连续的混沌行为。
- According to the relation between the radiating fields of line current and dipole, the radiating fields of the edge elements are obtained by reversion from the scattering fields of the infinite edges. 根据线电流与电偶极辐射场的关系 ,由无限长棱边的场反推得微元的场。
- In this paper,ring-stiffened cylindrical shells coated with internal deck are experimented on vibration and sound radiation. 对具有内部甲板的环肋柱壳模型进行振动和声辐射试验。
- Using an improved IR radiation field mode,the IR radiation field of some complex terrains has been calculated in li... 然后运用改进的自然地表红外辐射场理论模型计算了一定范围复杂地表的红外辐射场,得到了较为真实的地表红外辐射场分布。