The survey has a total margin of error of plus or minus 2.6 percentage points, larger for subgroups.
该调查错误率是加上或减去2.6%，对次级群组错误率幅度更大。
The total mean square error for gravity survey in mountainous region estimated by the present methods are usually too small to be convincing.
山区重力测量工作中，用现有方法计算总均方误差，往往使均方误差偏小，异常的可信程度降低。
The total mean square error for gravity survey in mountainous region estimated by the present methods are usually too small to be convincing.
山区重力测量工作中，用现有方法计算总均方误差，往往使均方误差偏小，异常的可信程度降低。
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