名词
中文翻译：防护比率
同义词：
['protective ratio', 'protective margin']
例句：
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1.The company's hedge ratio has increased significantly in the past year.
该公司的防护比率在过去一年显著提高。
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2. The investor is using a hedge ratio to protect their investment from market volatility.
投资者正在使用一个防护比率来保护他们的投资免受市场波动的影响。
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3. The financial advisor recommended a higher hedge ratio for the client's portfolio to mitigate risk.
财务顾问建议客户的投资组合采用更高的防护比率以减轻风险。