its relative measuring error 测量相对误差
With the selection of a gas liquid computational model to calculate bottom hole pressure and compare with observed pressure, its relative error is less than 2%.
选用气液两相计算模型计算井底压力并和实测井底压力进行了对比分析，相对误差均小于2 %；
Comparing the correction result with that of wireline density logging, its relative error is less than 5%, which can meet the index requirement for LWD environmental effect correction.
校正结果与经过偏心影响校正的电缆密度测井相比，其相对误差小于5%，达到了随钻测井环境影响校正指标的要求。
Through an experiment for free-form surface measurement, the approach is proven to be simple for parameter computation and its relative error for space length measurement is better than 0.56%.
通过对一自由曲面分块测量及数据拼接实验表明，这种方法参数求解简单，空间距离拼接相对误差优于0.56%。
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