地球

Free oscillation of the earth: A simple change-of-shape oscillation of the whole earth.

地球自由震荡：地球整体形状变化的简谐震荡。

Based on VHZ data recorded by 7 stations of China digital seismograph network for Nov. 14, 2001, earthquake in the west of the Kunlun mountain pass, we extracted spherical mode of 0S4-0S76 of the earth free oscillation using power spectral density estimation. Because the frequency response of seismograph in China digital seismograph network suppress information of solid tide, we do not need to remove the solid tide in our procession.

利用中国数字地震台网改造后的7个台站的VHZ波形资料，采用功率谱密度估计方法，利用中国数字地震台网地震仪对低频信号压制的特点，在没有对资料去除固体潮影响的情况下，提取了2001年11月14日昆仑山口西地震激发的0S4-0S76地球球型自由振荡，并与地球初步参考模型的理论自由振荡周期进行对比，结果表明与PREM预测的球型自由振荡周期符合得很好。

Thus the data of the earth spheroidal and toroidal free oscillation can be used to explore the 3-dimensional structure(density structure ,velocity structure) or anisotropy of the earth and help to disclose the convection mode in the whole mantle or in the upper mantle.

因此地球自由振荡信息可用于揭示地球的三维不均匀结构信息或各向异性信息，并可能对区分地幔对流模式有所帮助。

The method makes full use of all information of manifold geophysical data, avoiding the complicated calculation in linear joint inversion, and provides a new idea for the geophysical inversion about the data fusion point of view.

该方法充分利用了各种地球物理探测数据的全部信息，避免了线性反演的复杂计算；其数据融合的观点，为解决地球物理联合反演问题提供了新的思路。

The earth temperature rised 0.6 centidegree last century, the consequent many visitation of providence was gemination increasing by storm, flood, and drought.

在过去的一个世纪内，地球温度上升了0.6摄氏度，这直接导致了地球上由风暴、洪水、干旱等引起的各种天灾成倍增加。

The development of geobiology is emphasized on geomicrobiology.

当前地球生物学发展的重点是地球微生物学。

The Geobiology/Astrobiology group studies of Geobiology and Astrobiology, including elements of the atmosphere, the hydrosphere, and the lithosphere, the limits of life and habitability on our planet, organisms living at unusual conditions, searching for extraterrestrial life, and Mars.

该研究组主要是研究地理生物学和太空生物学，包括大气，水圈和岩石圈的组成，地球上生命的局限性和可居住性，异常环境中的有机生命，搜索地球外生命，以及火星。

The phenomena under investigation are often vexingly complex, and they engage a large array of scientific disciplines: Geology, Geophysics, Geochemistry, Geobiology, Physical and Chemical Oceanography, Meteorology, Atmospheric Chemistry, and Planetary Science.

我们所调查研究的现象通常十分的复杂，因此需要众多学科专业知识的配合：地质学、地球物理学、地球化学、地球生物学、海洋物理学与海洋化学、气象学、大气化学和行星科学等。

Oceanographers Tatiana Ilyina and Richard Zeebe of the University of Hawaii, along with geochemist Peter Brewer of the Monterey Bay Aquarium Research Institute in California, report in the December 20 issue of Nature Geoscience that lowering the pH of the ocean by 0.6 units could decrease underwater low-frequency sound absorption by more than 60 percent.

在12月20日出版的《自然-地球科学》杂志上，夏威夷大学的海洋学家塔蒂亚娜·伊丽娜、理查德·齐伯和加州蒙特里海湾水族研究所的地球化学家彼得·布鲁尔报道说：海水的 pH 值降低0.6，深层水对低频声音的吸收会减少60%以上。

Geosciences and geochemistry have made considerable progress in the theory as well as in concepts and methodology.

地球科学和地球化学的进展，不但加深和扩大了对地球的认识和理论成果，同时也总结提炼出了全新的科学思维方法。

The split between the two groups can hardly be papered over.

这两个团体间的分歧难以掩饰。

This approach not only encourages a greater number of responses, but minimizes the likelihood of stale groupthink.

这种做法不仅鼓励了更多的反应，而且减少跟风的可能性。