名词
中文翻译：中点比率
同义词：
['midpoint', 'midpoint ratio例句：1. The mid-point rate of the economy is a key indicator of its health.（经济中点率是衡量其健康的关键指标。）2. The mid-point rate for oil prices has increased significantly since last year.（自去年以来，油价的中点率显著上升。）']
例句：
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1. The mid-point rate of the economy is a key indicator of its health.
经济中点率是衡量其健康的关键指标。
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2. The mid-point rate for oil prices has increased significantly since last year.
自去年以来，油价的中点率显著上升。
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3.The mid-point rate for interest rates has been revised upwards.
利率的中点率已被上调。