... trace mineral 微量无机物;矿物质... trace fossil 生痕化石;踪迹化石... stack trace 堆叠追踪;堆栈踪迹...
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elite trace fossil 明星遗迹化石
trace fossil detail 足迹化石 ; 踪迹化石
plant trace fossil 植物痕迹化石
trace fossil Tisoa 遗迹化石Tisoa
animal trace fossil 动物遗迹化石
digging trace fossil 掘迹化石
trace fossil community 遗迹化石群落
trace fossil assemblage 遗迹化石群落
trace fossil Chondrites Chondrites遗迹化石
·2,447,543篇论文数据,部分数据来源于NoteExpress
N the fossilized remains of a track, trail, footprint, burrow, etc, of an organism 踪迹化石
The ichnofacies is the grouping of characteristic trace fossil association tending to rscirrence through a rather long interval of geologic time, and their environmental implication.
遗迹相是指一组具有特征的遗迹化石组合,在一段相当长的地质时期中不断的重视以及它们的环境意义。
Dr. Tattersall believes the leap to humans may have been brought about very suddenly, perhaps by a few critical genetic changes, which is why the transition is so hard to trace in the fossil record.
塔特萨尔博士认为,转变到人类的飞跃产生已经很突然,或许由于几个重要的基因变化。 这就是为什么这个转变在化石记录里很难找到。
Birds evolved from dinosaurs, but the origin of their feathers may trace back even deeper in time, to the common ancestor of dinosaurs and pterosaurs, like the fossil at left.
鸟类是从恐龙进化而来的,但羽毛的起源则要追溯到更为久远的上古时代,恐龙和翼手龙的共同祖先才是羽毛出现的源点,例如上图左边的这块化石。
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