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词汇
plano-concave lens
释义
plano-concave lens平凹透镜。plano-concave: adj. 平凹的〔一面平一面凹的〕。 lens: n. (pl. lenses) 1.透镜;一组透镜。 2 ...
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track athletics
track ball
track clearer
track gauge
track line
track master
track meet
track record
track road
track system
track-ball
track-laying
track-pad
tracking station
tracklayer
trackless
trackman
trackwalker
trackway
tract
tractable
tractarian
tractate
tractile
traction
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更新时间:2025/7/17 23:02:12