名词
中文翻译：Unknown
同义词：
['multi-stage system', 'multilevel system']
例句：
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1. The three-stage system is designed to improve efficiency and reduce costs.
这个三级系统旨在提高效率和降低成本。
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2. The company has implemented a three-stage system to streamline its operations.
该公司已经实施了一个三级系统来简化其运营。
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3. The three-stage system helps to ensure that all aspects of the project are covered.
三级系统有助于确保项目的所有方面都得到覆盖。