This could be used for the purpose of testing selpg, when you may only want (for some test case) to see the error messages, not the normal output.
这可作为测试selpg的用途，此时您也许只想(对一些测试情况)检查错误消息，而不想看到正常输出。
Error correction technique is used to make the system error within the allowed range so that system test accuracy is greatly increased.
利用误差修正技术，将系统误差修正到测量允许的范围，大大地提高了系统的测试准确度。
A significance test of parameters associated with a reasonable error analysis is used to judge the consistency of experimental data in different error grades.
一种参数的显著性检验方法，结合合理的误差分析，被用来对实验数据在不同误差等级下的一致性进行判断。
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