On the geological time scale mankind has existed but for a brief moment.
人类在地质年代表中已经存在，但时间不长。
Geologists have devised a special geological time scale in reference to the earth's evolution.
地质学家们根据地球的演化历史，设计出一种特殊的地质年代表。
Scientists are now debating whether it should be officially included in the Geological Time Scale.
科学家正讨论是否应正式把这个时期列入地质年代表。
Evidence of abrupt change — on a geological time scale — wrought by human hands would seem to be overwhelming.
人类造成的突变(以地质时期为尺度衡量)，其证据触目惊心。
The sudden appearance of abundant and varied fossils makes a worldwide time line for dividing the geological time scale into two main parts.
丰富多样的化石的突然出现为在世界范围内把地质年代划分为两大主要部份提供了时间界限。
It is also possible to read about the history of the geological time scale, and find out more about how it is organised, or go to a specific time period using the UCMP geologic time Machine.
从这里可以了解地质时标的历史，地质时标的组成，也可以利用加州大学古生物博物馆的“时间机器”进入特定的地质时期。
These are mainly attributed to the mining's geological background, the distribution of mercury belt and the mercury mining scale, and the mine closure time.
在沉积物中汞含量的比较也是得到相同的结果，这主要与矿区的地质背景、汞矿带的分布、还与汞矿开采规模、汞矿停产时间有关。
Making an approach to the time scale of several tens to hundreds years of engineering geological process is put forward and inquired in this paper.
对几十年到几百年的时间尺度上的工程地质作用进行了探讨。
Making an approach to the time scale of several tens to hundreds years of engineering geological process is put forward and inquired in this paper.
对几十年到几百年的时间尺度上的工程地质作用进行了探讨。
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