名词
中文翻译：油底壳
同义词：
['oil tank', 'oil sump', 'oil pan']
例句：
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1.The car's engine was sound when we got it home, but the oil tank was leaking.
我们回家时，这辆车的引擎是好的，但是油底壳在漏油。
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2.The mechanic replaced the oil tank and checked the oil level.
技师更换了油底壳并检查了油位。
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3.The oil tank is designed to hold a certain amount of oil for long periods of time.
油底壳设计用来长时间储存一定量的油。