In fact, this common, but zoned-out method of practice often engrains more problems more than it solves.

事实上，这是很常见的，不过漫不经心(没有焦点)的练习方法经常使问题更根深蒂固多于去解决它。

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It is pointed out that the time domain method is a special case of those two methods and it is more efficient than those methods based on wavelet transform in case of obtaining the same result.

指出时域法是这两种方法的一种特例，并且具有更高的效率及相同的结果。

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It turns out that the method in this paper is much more efficient and accurate than the pseudobending technique, but is only applicable to 1 D velocity model.

结果表明： 本方法比伪弯曲法的计算效率和计算精度更高， 但是只适用于一维速度结构；

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