执行履约期权有效期内期权购买者宣布将实行其权力按履约价买进或卖出期货合约
During the validity period of the exercise option, the option purchaser declares that they will exercise their right to buy or sell the futures contract at the exercise price
以上为机器翻译结果，长、整句建议使用 人工翻译 。
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