red layer 红层
red layer rock 红层岩石
red layer area 红层地区
tertiary red layer 第三系红层
red-layer soft rock 红层软岩
Red layer in Southern Yunnan 滇南红层
the third red layer Landslide 第三系红层滑坡
red soil layer 红壤层
red sensitive emulsion layer 感红性乳剂层
In fact, since the process can occur relatively quickly, it could be that the thin red layer of dust on Mars is somewhat new.
事实上，由于这一过程发生得相对较快，说不定火星上薄薄的那层红色尘埃层些许还是新近形成的呢。
Suddenly, the tender has always liked color change nail polish, and painted red, layer after layer, coated to a sixth finger only when screeching halt.
突然，把一贯喜欢的嫩色系指甲油换了，涂上了红色，一层又一层，涂到第六只手指的时候，戛然而止。
Red layer under the vast deposits of fossils. 1961 Guangdong Ou team mined by measuring the Late Cretaceous dinosaur fossils are very rare, is the world's best place to study dinosaurs.
红层下蕴藏着大量的古生物化石。1961年广东区测队采得的晚白垩纪恐龙化石非常珍贵，是全世界研究恐龙的最佳地方。
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