1、

the utility model relates to a drawing implement which is capable of drawing a parabolic curve and hyperbolic curve.

本实用新型是一种画抛物线和双曲线的画图工具。

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2、

application of a level-jib tower crane substituting a folding-jib tower crane in a hyperbolic curve cooling tower project

平臂塔吊代替折臂塔吊在双曲线冷却塔中的应用

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3、

Time distance curve of P S converted wave is non hyperbolic, and this characteristic is very obvious when the offset is much bigger than the depth.

PS转换波时距曲线具有非双曲线特征,在炮检距远大于深度的情况下,这种特征十分明显。

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4、

It is discussed how the hyperbolic time-distance curve of reflection wave is influenced by overlying-layer velocity variance and refiector undulation.

本文主要讨论上覆层速度变化及界面弯曲对双曲线型反射波时距曲线的影响。

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5、

With the point scattering geological model, the technical does not need gathers collection, but bases on the scattering wave time-distance curve hyperbolic rule, adopts single point optimization imaging.

基于点散射地质模型,无须进行道集选排,而是基于散射波时距双曲线规律,通过单点寻优成像。

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