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单词 schlieren
释义 schlieren
[`shlir·ǝn]
OPTICS
In atmospheric optics, parcels or strata of air having densities sufficiently different from that of their surroundings so that they may be discerned by means of refraction anomalies in transmitted light.
PETROLOGY
Irregular streaks with shaded borders in some igneous rocks, representing the segregation of light and dark minerals or altered inclusions, elongated by flow.
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