英语词汇echelon grating怎么读，是什么意思，单词翻译、读音、固定搭配用法和短语词组及例句-英汉双解词典

单词	echelon grating
释义	echelon grating 【光谱学】阶梯光栅[亦作 echelon]
随便看	contaminates contaminating contaminatings contamination contamination monitor contamination monitoring contaminations contaminative contaminator contaminators contaminous contango contango day contangoes contangos contd contd. contds conte contemn contemner contemners contemnest contemnible contemnibly

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