velocity stack的意思|示意

The biggest relative error is less than 1.5% when they are used to adjust the stack velocity.

利用这8个校正公式校正叠加速度的最大相对误差均小于1．5％。

The stack velocity calculated on the floating datum depends on the velocity of medium underlying the low velocity layer and is independent of topography and low velocity layer.

在此浮动基准面上求取的叠加速度仅取决于低速带底板下伏介质的速度，而与地形、低速带无关。

The precision of stack velocity and interval velocity provided by common NMO correction processing method can't meet the need of predicting the pre-drilling press.

常规动校正处理方法提供的叠加速度及层速度精度不能满足钻前压力预测的需要。

The critical wind velocity in sloping tunnels will be different from horizontal tunnels due to the stack effect.

在坡度隧道中，由于火风压的作用，临界风速与水平隧道临界风速相比会有一定的差异。

If selecting different datum, the corresponding results of velocity analysis and stack are different too.

如果选择不同的基准面，相应的速度分析和叠加结果也会不同。

Then, software about velocity analysis, stack and migration are studied and analyzed basing on the characteristics of the hydrate.

其次，我们还针对天然气水合物的特性，研究并分析了资料处理过程中的速度分析、叠加处理、和偏移处理软件。