英语语法分析

Direct downgoing wave in VSP data has strong energy and high signal-noise ratio, which favours the calculation of absorption para - meters.

VSP资料的直达下行波能量强，信噪比高，为求取吸收参数提供了有利条件。

The comparison between measured and calculated values generally shows the same trend and the downgoing resistance of plunger increases with flow rate in both cases.

结果表明，现场测试值与计算值总体趋势相同，柱塞的下行阻力都随流量的增加而增大，现场测试值与公式计算值基本相符。