A map with contours spaced at interval of half wavelength of the viewing light is discernable.
以可见光的波长的一半为间隔的轮廓线是可以辨认的.
辞典例句
There is no discernable normal lobular architecture, though vascular structures are present.
虽然血管结构存在, 但无可辨认的正常肝小叶结构.
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Enough of the implications are discernable, even obvious, so that the justices can and should provide updated guidelines to police, lawyers and defendants.
出自-2015年考研阅读原文"things happen in the earth and sky with no discernible cause"
"the newspaper reports no discernible progress in the negotiations"
"the skyline is easily discernible even at a distance of several miles"