在基于单一方法进行油气勘探的过程中，前人对波段比值的方法给了很高的评价，但效果均不显著。
Though band ratio is highly evaluated as a single method in oil-gas exploration, the effect is far from satisfactory.
实例表明，比值法能够快速解决OV - VRPSDP问题，并且具有较好的优化效果。
The examples show that the ratio method can quickly solve the OV-VRPSDP problem, and have better effect of optimization.
差值法与比值法对不同测量系统的误差修正效果不一样。
In different measurement systems, the error correction effect is also different for the difference method and the ratio method.
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