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单词
national ambient air quality standards
释义
National ambient air quality standards
National ambient air quality standards
The standards established by the EPA (Environmental Protection Agency) that apply to outdoor air throughout the country.
Acronyms
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NAAQS
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frequency-modulation continuous-wave
frequency-modulation detector
frequency-modulation doppler
frequency modulation extended-range
frequency modulation & feedback
frequency modulation-frequency modulation
frequency-modulation laser
frequency modulation multiplexer
frequency-modulation noise level on carrier
frequency modulation on pulse
frequency modulation orderwire
frequency modulation-phase modulation
frequency-modulation radar
frequency-modulation receiver
frequency-modulation receiver deviation sensitivity
frequency modulation stereo
frequency modulation subcarrier service
frequency modulation synthesis
frequency-modulation synthesis
frequency modulation television
frequency-modulation transmitter
frequency-modulation tuner
frequency modulation voice frequency telegraph
frequency modulator
frequency monitor
英语词典包含2567994条英英释义在线翻译词条，基本涵盖了全部常用单词的英英翻译及用法，是英语学习的有利工具。
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更新时间：2026/3/2 13:01:54