名词短语
中文翻译：Unknown
同义词：
['gravity oil tank', 'heavy oil tank', 'heavy oil storage tank', 'heavy oil storage tank']
例句：
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1. The engineer designed the gravity oil tank to store heavy oil for long-term storage.
工程师设计了重力油罐来长期储存重油。
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2. The heavy oil tank is crucial for the operation of the oil refining plant.
重型油罐对于炼油厂的运营至关重要。
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3. The gravity oil tank is equipped with an automatic temperature control system to ensure the oil's quality remains stable.
重力油罐配备了自动温度控制系统，以确保油品质量保持稳定。