名词
中文翻译：密封递价
同义词：
['sealed offer', 'sealed bid', 'sealedoffer']
例句：
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1. Thecompany issued a sealed tender for the newproduct.
该公司对新产品进行了密封递价。
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2. Thebidding process was conducted in a sealedmanner to ensure transparency.
竞标过程以密封方式进行以确保透明度。
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3. The winningbidder had to submita sealed tender with their proposal.
中标者必须提交一份密封递价，附带他们的提案。