“annual service availability index”的概念、定义、翻译、参考文献-科学参考

单词	annual service availability index
释义	annual service availability index [¦an·yǝ·wǝl ¦sǝr·vǝs ǝ´vāl·ǝ`bil·ǝd·ē ´in´deks] ^ELECTRICITY The ratio of customer-hours of service supplied by an electrical utility during one year to the customer- hours requested, expressed as a percentage.
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