error box错误框errorn.错误；过失；误差；谬误error of manufacture加工误差error susceptibility误差敏感度error sum of squares误差平方和error-free channel无错误信道error control device差错控制装置, 错误控制设备error of performance技术错误error transformation误差转换error logging report出错记录报告error classification错误分类error code measuring误码测试