英语词汇index of operating ratio怎么读，是什么意思，单词翻译、读音、固定搭配用法和短语词组及例句-英汉双解词典

单词	index of operating ratio
释义	index of operating ratio 简明释义经营比率指数网络释义 1 [统计]?经营比率指数 ... 经营比率 operating ratio 经营比率指数 index of operating ratio 经营比赛 management game ... 双语例句 1 Operating benefit is a problem that all of insurance company are concerned about. The key of profit and loss for insurance business is claim ratio index. 经营效益是每个保险公司都关心的问题，保险经营盈亏的关键是赔付率指标。 2 The S&P 500 index is trading on a price-earnings ratio of around 20, based on 2009 forecasts for operating earnings. 基于对09年运营收益的预测，标准普尔预计市盈率在20左右。
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英汉双解词典包含3185865条英汉词条，基本涵盖了全部常用单词的翻译及用法，是英语学习的有利工具。