名词
中文翻译：瀑布式油封
同义词：
['cascade seal', 'waterfall seal']
例句：
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1. The team used a cascade oiling system to prevent leaks during the construction process.
该团队使用一种瀑布式油封系统来防止施工过程中的泄漏。
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2. The engineer designed a cascade oiling system that could effectively reduce friction and improve efficiency.
工程师设计了一种瀑布式油封系统，可以有效地减少摩擦并提高效率。
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3. During the rainy season, the waterfall oiling system was crucial for maintaining water levels in the reservoir.
雨季期间，瀑布式油封系统对于保持水库水位至关重要。