The relativistic correction due to earth rotation for both terrestrial and satellite time comparison experiments via laser pulses has been discussed and a practical calculation formula is proposed. 同时还讨论了在地面和卫星的激光时间比对实验中由于地球自转效应的相对论改正问题,提出了一种实用计算公式。
It is our strategic goal to exploit new green energy and regeneration energy, such as biological energy, solar energy, wind energy, terrestrial heat energy and ocean energy for a long period of time. 开发利用生物质能、太阳能、风能、地热能、海洋能等新型绿色能源和可再生能源,是我国长期的能源发展战略。
At first, this paper introduced the basic principle of terrestrial laser scanning technology systematically and classified the multiple terrestrial laser scanners at the same time. 本文首先介绍了地面三维激光扫描系统的工作原理,对多种不同的三维激光扫描仪进行详细的类别划分。
The paper presents the frame structure defined in the Terrestrial Digital Multimedia/ TV Broadcasting system, which adopts PN codes as frame-preambles to achieve system synchronization in time domain. 介绍了数字多媒体电视广播协议(DMB-T)中的信号帧结构,该结构引入PN码帧头用于时域同步。
This paper reviews the effect of nitrogen input on terrestrial ecosystem carbon pool in recent years, and makes a prospect for research, and at the same time, brings forward some future topics in this field. 本文综述了近年来氮输入的研究现状,并对未来的研究方向做了展望,提出今后重点研究的方向。
Influenced by the division for marine stratigraphic sequence, especially considering the division consistency between the marine and terrestrial stratigraphic sequence, debate on the system domain division schemes of terrestrial sequence is endless for a long time. 由于受海相地层层序划分的影响,特别是考虑到与海相地层层序划分的一致性,导致陆相地层层序内体系域的划分方案长期争论不休。
Especially, time-consuming terrestrial transportation, trivial procedures and long time waiting in the airport terminal, impact the civil aviation in the competition with railroad and highroad. 尤其在航空运输中,耗时的地面运输、烦琐的手续和漫长的候机,使得民航运输在铁路和公路的发展中受到冲击。
The reservoir time are decided by inclusion body homogeneity temperature and terrestrial heat history, the time is the telophase of the Cretaceous period, the reservoir time and tectonic movement is accordant. 利用烃类流体包裹体均一温度并结合盆地东部的地热史,厘定出石千峰组气藏成藏时间为晚白垩世,这与盆地整体向西倾斜、地层大量剥蚀的时间基本上是一致的。
The soil-water movement is one of the most complex important part of the terrestrial water cycle, and also is an important part of the material recycling in soil, at the same time soil-water is the carrier of the heat and solute transport in soil. 土壤水分运动是陆地水循环中最为复杂的重要环节之一,也是土壤圈物质循环的重要组成部分,同时土壤水也是热量和溶质在土壤中传输的主要载体。
Using conventional logging data to calculate terrestrial stress time difference and single well stress, and corrected, The actual application error rate is less than 8%. 通过应用常规测井数据计算横波时差和单井地应力,并进行矫正,实际应用误差率小于8%。
Grassland ecosystem is an important component of terrestrial ecosystems, the study on the impact of nitrogen nutrition on grassland communities are mostly concentrated in the community productivity, species diversity and community structure changes for a long time. 草地生态系统是陆地生态系统重要的组成部分,长期以来关于氮素营养对草地植物群落影响的研究大多集中在群落生产力和多样性以及群落结构的变化等方面。
Organic Rankine cycle low-temperature waste heat power generation can recycle waste gas of industrial emissions, solar, terrestrial heat, biomass and some low-grade thermal energy for power generation, at the same time the structure of the system is simple and easy to control. 基于有机朗肯循环低温余热发电系统可回收工业排放的废气、太阳能、地热、生物能等一些低品位热能用于发电,同时该系统具有结构简单、易于控制等优点。
The terrestrial heat flow value is the heat passing through per unit surface from earth interior in per unit time. 大地热流值是单位时间内由地球内部通过单位地球表面散失的热量。
Interaction between terrestrial ecosystem and climate system with the impact of human activities is one of the key scientific issues in the yield of global change research at the present time. 人类活动影响下,陆地生态系统和气候系统的相互作用已成为目前全球变化研究的主要科学问题之一。
A wide intracontinental basin developed there since Paleogene, and thick terrestrial deposition formed until late Cenozoic time when it was subjected to compressional deformation and uplifted. 古近纪中晚期以来,该区一直是一个巨大的内陆盆地,沉积了巨厚的陆相沉积物,中新世晚期以来这一湖盆遭到了隆起并褶皱成山。