vacuum breaking valve
基本释义
真空破坏阀
实用场景例句
商业分析
Investing in the outdated machinery proved uneconomic, as the returns didn't justify the costs.
投资过时的机器被证明是不经济的，因为回报无法弥补成本。
学术讨论
The research concluded that the traditional method was uneconomic compared to the new approach.
研究结论表明，与新技术相比，传统方法是不经济的。
政策辩论
The government argued that the subsidy was uneconomic and should be terminated.
政府认为补贴是不经济的，主张终止。
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