Shear wave velocity is an important indicator which influence the ability that mediators propagate waves.

剪切波速是反映介质对波传播能力的一个重要指标。

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Reflected wave signal is processed by double channels two-order low-pass active filtering in hardware, and indicator diagram signal is processed by digital filtering in software.

液面反射波信号主要在硬件方面采用双通道二阶有源低通滤波，功图信号则在软件方面采用数字滤波算法。

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The difference in amplitude and energy of seismic wave between fracture cave zones and surrounding rock is an indicator of fractures and caves.

利用这种差异来进行缝洞检测，必须对缝洞岩层的地震波反射特征有一个全面的了解。

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There are countless strategies, indicators and systems that are mentioned in the popular press with such catchy names as the January Indicator, Dogs of the Dow, Elliott Wave Theory, Dow Theory, Sell in May and Go Away, and the Fed Model.

FORBES: Get Ready For A Turbo Charged January Effect