名词
中文翻译：真空密封性
同义词：
['vacuum seal', 'vacuum tight例句：1. The new vacuum cleaner has a very high vacuum tightness.（这款新型吸尘器的真空密封性非常高。）']
例句：
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1. The new vacuum cleaner has a very high vacuum tightness.
这款新型吸尘器的真空密封性非常高。
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2. The vacuum tightness of the seal is critical to the functioning of the device.
密封的真空度对设备的工作至关重要。
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3. The vacuum tightness of the packaging ensures that the product remains fresh for longer.
包装的真空密封性确保产品保持新鲜更长时间。