名词短语
中文翻译：有效性规则
同义词：
['efficiency rule', 'efficiency principle']
例句：
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1. The company's new policyis designed to improve the efficiency of itsoperations.
该公司的新政策旨在提高其运营的效率。
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2.The manager made a rule that all employeesmust be present at the meeting.
经理制定了一个规定，所有员工都必须参加会议。
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3. The efficiencyrule has been implemented in all departmentsto ensure smooth workflow.
效率规则已在所有部门实施，以确保工作流程顺畅。