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- DETERMINATION OF BEARINGS OF UNDERWATER OBJECTS BASED ON ACOUSTIC INTENSITY AND ACOUSTIC PRESSURE GRADIENT 基于声强向量法和声压梯度法的水中目标定向
- acoustic pressure gradient 声压梯度
- There is no pressure gradient through the thickness of the film. 贯穿流体膜厚度无压力梯度。
- Mesoscale Nonhydrostatic and Hydrostatic Pressure Gradient Forces Theory. 中尺度非流体静力和流体静力气压梯度力理论。
- The smaller the permeability, the bigger the start-up pressure gradient. 渗透率越小,启动压力梯度越大。
- The output signal from the interferometer is proportional to the acoustic pressure in water. 输出的信号直接正比于液体中的声压。
- Experiments indicate that our contrast technique is not sensitive to contrast dose, flow rate, acoustic pressure. 证明本文提出的造影成像方案对声压、流速、造影剂浓度在一定范围内不敏感。
- The atmosphere pressure gradient is an inverse measure of the spacing of the isobars on a weather map. 气压梯度与天气图上等压线的间隔大小成反比。
- In a word, whether in estimator performance of DOA or detector performance of signal, vector array is excel to general acoustic pressure array. 综上所述,无论是目标方位估计性能,还是信号检测性能,矢量阵都优于常规声压阵。
- There should be pressure difference display device when there is a pressure gradient. 有压差梯度的区域无压差显示装置。
- The acoustic pressure and acoustic power of the whole structure are obtained by superposing those of each infinitesimal element. 以每个微元为一单位,分别计算声压和声功率之后叠加起来,即得整个结构的声辐射。
- The formation pressure gradient curve in the same depth of logging is computed by equivalent depth method. 通过等效深度法计算出与测井曲线采样深度对应的地层压力梯度曲线。
- On the contrary, the collapse of bubble will become more violent with higher acoustic pressure, but overhigh pressure will make it never happen. 提高声场声压 会加剧气泡崩塌程度,但过高的声压又不能使微气泡崩塌;
- In addition, the effect of startup pressure gradient of Bingham fluid in stratum pressure distribution are analyzed. 分析了宾汉流体的启动压力梯度对地层压力分布的影响。
- Methods A hydrophone was used as energy converting equipment to collect wave of acoustic pressure in the field of ultrasound. 方法:采用水听器作为换能器,通过采集超声信号在空间声场内一点的声压波形。
- Test results indicate that goal of high speed ignition can be attained under the pressure gradient of steepest descent. 试验结果表明,在高减压梯度下可以达到快速点火的目的。
- Many experiments justify that there is a threshold pressure gradient (TPG) in low permeability reservoirs. 试验表明 ,低渗透油藏存在启动压力梯度。
- The results showed large pressure gradient and velocity gradient of the material in the four intermeshing regions. 计算结果表明:四螺杆的四个啮合区具有较大的压力梯度、速度梯度,其混合性能明显好于双螺杆挤出机。
- In circumstances like varying SNR, fluctuating acoustic pressure and excursive frequency, numerical simulation shows that the detection system works well. 在信噪比变化、声压起伏、线谱漂移等情况下,仿真结果表明双稳态随机共振系统都能较好地工作。
- The pressure gradient is osmotically generated and results from the loading at the source and unloading at the sink. 韧皮部装载:指光合作用产物从叶肉细胞输入到筛分子一伴胞复合体的整个过程。