In examining efficiency variance it is unlikely that the true causes will be established absolutely and evaluated accurately,but it is necessary to determine if the variance is due to an incorrect allocation of standard hours or the actual performance.是什么意思_In examining efficiency variance it is unlikely that the true causes will be established absolutely and evaluated accurately,but it is necessary to determine if the variance is due to an incorrect allocation of standard hours or the actual performance.在線(xiàn)翻譯_英語(yǔ)_讀音_用法_例句