名词短语中文翻译1
中文翻译：Unknown
同义词：
['functional', 'operational', 'operating']
例句：
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1.The system is designed to normally function at optimum efficiency levels.
该系统设计为在最佳效率水平上正常运作。
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2. The machine operates normally when the power supply is connected.
当电源连接时，这台机器能正常运转。
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3. The software needs to be functional before it can be used in a production environment.
软件在使用前需要能够正常工作。