[, ] () the amount by which sth changes or is different from sth else差异；变异；变化◆We test for any variance in quality at all stages of production.我们在生产的每一个阶段检测任何的质量变化。 () the difference between the levels of costs or income that have been planned for an activity and the actual costs or income（计划成本或收入与实际成本或收入的）差异，差额◆The favourable variance of $700 000 (= we spent $700 000 less than expected) is mainly due to good control of expenses.70 万元的正差额主要是由于对开支控制良好。⨁adverse / favourable / positive / unfavourable variance逆／顺／正／负差额