名词
中文翻译：Unknown
同义词：
['- sealing bellows']
例句：
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1. The sealing bellowsare essential for the operation of the machine.
密封式风箱是该机器操作所必需的。
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2.The engineer had to replace the sealingbellows due to a leak.
工程师不得不更换密封式风箱，因为出现了泄漏。
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3. The gasket bellows ensured that the exhaust was smooth and efficient.
密封式风门确保了排气顺畅且高效。