名词
中文翻译：Unknown
同义词：
['absolutely perfect vacuum', 'flawless vacuum', 'perfectly sealed vacuum']
例句：
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1. The engineer used a perfect vacuum to remove the dust from the air filter.
工程师使用一个完美的真空来从空气过滤器中吸走灰尘。
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2. The scientist conducted experiments in a perfectly sealed vacuum chamber.
科学家在一个完全密封的真空室中进行实验。
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3.The chef was proud of his perfect vacuum-sealed food containers.
厨师对他的完美真空密封食品容器感到自豪。