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编者注：本词条为中国台湾地区学术名词用语，仅供参考。
单词
百万分率
释义
parts per million (ppm)
百万分率
土木工程名词
parts per million (ppm)
百万分率
气象学名词
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automatic level compensation{=ALC}
automatic level control
Automatic level control
automatic level control {=ALC}
automatic level control{=ALC}
automatic level control circuit
automatic level controlled crystal oscillator
Automatic level controlled crystal oscillators
automatic leveling
automatic level recorder{=ALR}
automatic level setting{=ALS}
automatic level tracking
automatic lever method
automatic lexical code
automatic lexical coding
automatic library call
automatic library update
automatic license plate recognition
automatic light compensation {=ALC}
automatic light control
automatic line adjust
automatic line feed{=ALF}
automatic line following
automatic line integration {=ALI}
automatic line reconnect
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