名词
中文翻译：次级排放管
同义词：
['次级排放管，次级排放管，次级排放管']
例句：
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1.This new type of secondary emission tube is more efficient than the previous one.
这种新型的次级排放管比之前的更高效。
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2.The manufacturer claims that the secondary emission tube reduces noise pollution by up to 30%.
制造商声称，次级排放管能将噪音污染降低多达30%。
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3.The engineer designed a secondary emission tube that can filter out harmful chemicals from the exhaust gases.
工程师设计了一种次级排放管，可以从废气中过滤出有害化学物质。