Utility computing短语¹¹⁴⁴⁶⁷⁺⁴ 基本例句 效用计算 It must adequately cover high infrastructure costs with low margin with cheap pay-on- demand subscriptions—unlike utility computing that charges pay-per- use rates. 因为只有客户群足够大，按需付费订阅的低收益才能弥补基础设施的高成本— 它不像效用计算那样按使用率来收费。 ibm