A kind of silicified fossil wood with mixed pits on the radial tracheid wall is described.
报道了一种具混合型纹孔(互列式纹孔和对列式纹孔)的化石木.
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The age equivalence of fossils found in the sandstone and the shale is thus demonstrated.
发现于砂岩和页岩中化石的等时性就这样得到证明了.
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Floor Tongkuangyu sites are now ancient vertebrate fossils for the provincial protection units.
楼则峪遗址如今为省级古脊椎动物化石保护单位.
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Any of various plants of the genus Asperula, having whorled leaves and small funnel-shaped flowers.
化石蕨类植物的一科, 是以茎上显著呈螺旋排列的叶座为特征.
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It is a rare , well-preserved fossil tree of unusual height and girth.
这是一块树木化石,木形完整,体积又长又大,实属罕见.
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He first searched for remains of early man in Jehol, then in Thailand.
他先在热河省, 后来又在泰国寻找早期人类的化石遗存.
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Two others of these trilobite fossils have been found in the same area.
在同一地区还发现了另外两块这些三叶虫化石.
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As demand? and prices? rise, a scarcity of fossil fuels will bring economic restructuring.
随着需求增加和价格的上涨, 化石燃料的短缺将引发经济重组.
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皮尔当人是次有名的骗局，多块头骨和颚骨于1912年被发现，并被认为是早期人类化石的遗骸。
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煤炭是当今世界使用最广泛的化石能源之一，但作为非再生能源，大量的使用导致了优质煤炭的日益紧缺。
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According to saying, these name name with fossil discovery ground or the place name around mostly.
据称, 这些恐龙的命名大多以化石发现地或附近的地名为名.
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Archaeologists at the valley vinales found a large number of dinosaurs, apes, sea turtles fossils.
考古学家在比尼亚莱斯山谷中发现了大量恐龙 、 猿猴 、 海龟化石.
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镉也可能随着 ( 家庭 ) 废弃物的燃烧和化石燃料的燃烧排放到空气中.
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These scientists found dinosaur fossils, parrot's beak-12 ( A Long Kok ) varieties.
科学家发现的这些恐龙化石, 有12个鹦鹉嘴龙(角龙的一种 ) 品种.
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Two passes ASAW technology for girth weld of LPG cylinder with lock butt joint is introduced.
本文介绍了液化石油气钢瓶环缝锁底接头、两道埋弧焊工艺.
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