英语词汇“echelon lens”的读音、翻译、释义、用法及例句-范文网

词汇	echelon lens
释义	echelon lens【光学】阶梯透镜。echelon: n. 1.【军事】梯队，梯阵；梯列。 2.组织系统中的等 ...lens: n. (pl. lenses) 1.透镜；一组透镜。 2 ...
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