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- relative geologic time 相对地质时期
- A hiatus is the total interval of geologic time. 一个沉积间断是地质时间的总间隔。
- Measurement of geologic time,as through isotopic radioactive decay. 地质年代测定是通过放射性同位素衰变来测定的。
- A unit of geologic time that is a division of a period. 世地理学中小于纪的时间单位
- The longest division of geologic time, containing two or more eras. 万古地质时期中最长的分段，包括两个或两个以上的代
- Measurement of geologic time, as through isotopic radioactive decay. 地质年代测定通过放射性同位素衰变来测定地质年代
- The longest division of geologic time, made up of one or more periods. 纪元地质年代最长的划分，由一个或多个阶段组成
- Geologic time unit, rock stratigraphic units and time stratigraphic unit. 地质年代单位、岩石地层单位、年代地层单位。
- The quaternary period of geologic time extends from the end of the tertiary period to the present. 地质时期中的第四纪是从第三纪一直到现在。
- Large - scale evolution occurring over geologic time that results in the formation of new taxonomic groups. 宏观进化产生新的分类群体形的跨越地质时代的大规模进化
- Large-scale evolution occurring over geologic time that results in the formation of new taxonomic groups. 宏观进化产生新的分类群体形的跨越地质时代的大规模进化
- The resonances they trigger span geologic time and human history.（by Caroline Henderson. 他们所引起的共鸣与迴响则跨越了地质学上的时间以及人类的历史。
- That is imperceptibly slow on a human timescale but will be devastating over geologic time. 虽然这一速度以人类历史的长度来衡量的话极其缓慢，难以觉察得到，但是经历若干地质年代以后，这种过程就会具有较大的破坏性。
- The study of the forms of life existing in prehistoric or geologic times, as represented by the fossils of plants, animals, and other organisms. 古生物学对出现在史前或地质时代的生命的形成的研究，体现在植物、动物和其它有机体的化石上
- The minor cation/polyalcohol drilling fluid was tested and then widely used in Yuxi and Hongtai structures which is relative geologically complex in Tuha oilfield. 室内试验表明,该钻井液比聚磺钻井液在抑制性、润滑性、流变性以及抗温、抗盐能力方面都有不同程度的增强。
- Of,belonging to,or designating the geologic time,system of rocks,and sedimentary deposits of the seventh and last period of the Paleozoic Era. 二叠纪的，二叠岩的是、属于或标明为古生代第七个和最后一个阶段的地质时期、岩层及沉积矿藏。
- Of, belonging to, or designating the geologic time, system of rocks, and sedimentary deposits of the seventh and last period of the Paleozoic Era. 二叠纪的，二叠岩的是、属于或标明为古生代第七个和最后一个阶段的地质时期、岩层及沉积矿藏
- Of, relating to, or being the geologic time and deposits of the epoch in the Tertiary Period of the Cenozoic Era that extended from the Eocene Epoch to the Miocene Epoch. 渐新世的新生代第三纪的，从始新世到中新世的地质年代的或沉积物的或与之相关的
- That Pluto's puffy, distended atmosphere is escaping from it so fast that surface features can "escape away" over geologic time. 它那胀大的大气极快地逃逸出去, 以至于其所有的地表特征将在地质时期内消失殆尽。
- Of,relating to,or being the geologic time and deposits of the epoch in the Tertiary Period of the Cenozoic Era that extended from the Eocene Epoch to the Miocene Epoch. 渐新世的新生代第三纪的，从始新世到中新世的地质年代的或沉积物的或与之相关的
