名词
中文翻译：漏斗门
同义词：
['steam trap', 'steam vent', 'exhaust valve']
例句：
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1. The engineer foundthe sprue gate to be a significant source of leakage.
工程师发现这个漏斗门是泄漏的一个主要来源。
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2.The technician replaced the sprue gate with a new one to improve efficiency.
技术人员用一个新的来替换漏斗门，以提高效率。
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3. The factory had to shut down temporarily due to a blockage in the sprue gate.
工厂因为漏斗门堵塞不得不暂时关闭。