velocity change meaning in English
速度变化
Examples
- The velocity change of negative pressure wave generated by pipeline leak during the process of transmission is analyzed , the formula of wave velocity changing with temperature is deduced , and the pipeline leak positioning problem is transformed into a function optimization problem
摘要通过分析管道泄漏产生的负压波在传播过程中速度的变化，推导出波速随温度变化的公式，并将管道泄漏点定位问题转化为函数优化问题。 - Our technique differs strongly from the linear prediction model , which has low prediction accuracy and requires frequent updates when applied to real traffic with velocity changing frequently . the data structure extends the r - tree with adaptive units which group neighbor objects moving in the similar moving patterns
有许多索引技术已经提出来支持可预测的查询，他们中大多数使用线性预测模型，即表示对象的位置为一个时间的线性函数来预测他们的将来位置。 - Based on the concepts of elastic wave velocity of skeleton and reinforced cohesion , the effect on the velocity by soil density with different saturation was distinguished from that by weakened reinforced cohesion ; on the condition of same confined press and saturation , the elastic wave velocity was measured before and after soil samples were dynamically loaded , so that the elastic wave velocity changed by dynamic load was distinguished from that by soil . nature characteristic
( 9 )通过试验运用了骨架波速和黄土加固凝聚力的概念，将饱和度的增加引起土体密度的增加对波速的影响与水破坏加固凝聚力对波速的影响区分开来；在相同的压力和饱和度(近似)条件下，采用动力作用前后分别测试弹性波速的方法，将动力荷载对加固凝聚力的破坏作用与土样自身的颗粒组分对波速的影响因素区分开来。 - 3 , considering of the combustion reaction controlled by multi - mechanism , calculated results showed combustion wave of the continual combustion also changed to an unstable combustion way , the combustion temperature and wave propagating velocity changed periodically . by changing factors about the reaction mechanism , results showed the periodic oscillation combustion was mainly caused by the effect and feedback between chemical reaction and thermal conduction
3 、计算结果同时显示， shs燃烧过程中的不稳定主要来源于燃烧过程的热反馈造成的化学反应机理变化，在这种存在多机理控制的反应体系中，燃烧过程的温度会随时间变化而出现有规律的振荡。 - Several numerical experiments are carried out to detect the actual steps and limitation for the velocity and depth parameter ' s ray inversion in the fourth chapter , and the we find that : a . the resolution capability of the layer ' s velocity change along both the top and bottom boundary is very poor . thus generally the vertical homogeneous layer model whose top velocity equal to that of its bottom boundary should be considered
本文的第四章通过一系列模型试验详细探讨了利用射线反演方法反演速度和深度参数的实际步骤，认为走时反演对速度层内顶部和底部速度变化的分辨能力很弱，仅仅依靠走时数据难以反演出层内顶部和底部的速度变化，故一般情况下应采用速度层底部和顶部速度相同的纵向均匀模型。