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甲烷报警器
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methane alarm
甲烷报警器
具有检测甲烷浓度功能、在甲烷浓度达到或超过规定的浓度值时能发出声、光报警信号的仪器。又称瓦斯报警仪。
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Current Affairs School
current algebra
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current awareness bibliography
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Current Bibliography on Science and Technology
current blocking layer
current-blocking layer
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current commonly-used Chinese character
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current density functional theory
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