名词
中文翻译：排放计数器
同义词：
['discharge counter', 'discharge counter', 'discharge counter']
例句：
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1. The engineer used a discharge counter to monitor the amount of gas released during the test.
工程师使用一个排放计数器来监测测试期间释放的气体量。
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2.The company installed a discharge counter in the factory to ensure compliance with environmental regulations.
该公司在工厂安装了排放计数器，以确保遵守环境法规。
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3.The discharge counter was used to measure the concentration of pollutants in the air before and after the operation.
排放计数器被用来测量操作前后空气中污染物的浓度。