名词
中文翻译：铸铁管
同义词：
['pipe', 'pipe fitting', 'pipe lining']
例句：
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1.The cast iron gilled tube economizer is an essential component of the heating system.
铸铁管节能器是供暖系统的一个必要组成部分。
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2. The engineer used a cast iron gilled tube economizer to improve efficiency.
工程师使用铸铁管节能器来提高效率。
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3. The cast iron gilled tube economizer was installed in the boiler to reduce energy consumption.
铸铁管节能器被安装在锅炉中以减少能源消耗。