a unit of geological time.
短于一个纪而长于一个代的地质年代的分期。
Bio 2 compressed geological time into years.
生物圈二号将地质时间压缩成了几年。
Obliquity of the ecliptic in the geological time
气候演变的周期性与黄道倾斜的关系地质时期的黄赤交角
Quaternary geological dating and time scale seismicity scale
第四纪地质定年与地质年表地震活动性的标度
The periodic regularity of geological time in the Galactic year.
地质年代在银河年中的周期规律
A unit of geological time during which a system of rocks formed.
地质上的分期，指岩石形成的时期。
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。
A new geological time scale and views on the division of geological time
对地质时代划分的意见及新地质年代表
Applications of Time Domain Reflection Technique in Geological Science Researches
时域反射技术在地学研究中的应用
Illegal felling of trees for a long time will cause serious geological disasters.
长期得滥砍滥伐会造成严重得地质灾害。
Rock fall, a geological hazard, has not attracted attention of researchers for a long time.
长期以来, 滚石灾害是一种很少受到重视得地质灾害。
The process before water bursting acts as a geological activation related to time of exploitation.
突水前表现一个与时间有关得地质作用过程。
Pangea existed between 550 and 200 million years agowhich is relatively recent in geological time.
根据最新得地质时期表，泛古陆存在于2亿至55亿年前。
The introduction of geological time into our reasoning is of prime importance for petroleum exploration.
对石油勘探而言，把地质时间引入我们的推论是最重要的。
Discussion on the Geologic Time of Host Rocks of Jinding Superlarge Deposit and its Geological Implications
金顶超大型矿床容矿围岩时代探讨及地质意义
At the same time, some similarity characteristics of the Radon data over different geological abnormalities have been shown.
并讨论了不同地质异常氡值相似性曲线的特征。
The stone tools in later period is mainly microlithics, The main geological time of cultural layers falls between late Pleistocene and early Holocene Epoch.
主要文化层的地质年代为晚更新世晚期至全新世早期。
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