Often what you should test is the relative error in terms of ULPs.
通常，就ulp进行测试时考虑的是相对错误。
Estimation of GM (1, 1) model parameter usually adopts the least square criterion, but test of model precision often USES average relative error criterion.
估计GM(1,1)模型中的参数通常采用最小二乘准则，而在模型精度检验时又常采用平均相对误差。
The relative error is only 5% between the forecasting result of Lab model and the result of collapsing test, which also proved that it is a feasible.
实验室模型井架预测结果与试验值相差仅为5％，从而验证这一做法的可行性。
The result of the test shows that the relative error between the laser speckle method and other methods is less than 5%.
试验成果表明激光散斑法与其他方法的相对误差小于5％。
The test results prove that by using the system the frequency measurement accuracy can achieve thousandth and the relative error of measurement within 1%.
测试结果证明采用该系统对频率测量的精度可以达到千分之一，测量的相 对误差不大于1％。
Test was taken for comparing the method of test tube and spectrophotometry, their detecting result were almost same, relative error was within 10%. It can be used for in-site detect.
作了测试管法与分光光度法的对比测定，表明两种方法测定结果基本相同，相对误差在10%以内，满足了现场监测需要。
Test was taken for comparing the method of test tube and spectrophotometry, their detecting result were almost same, relative error was within 10%. It can be used for in-site detect.
作了测试管法与分光光度法的对比测定，表明两种方法测定结果基本相同，相对误差在10%以内，满足了现场监测需要。
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