地球

From the fields of regional crust-mantle structure, metallogentic settings, history of tectonic-magmatic activity, distribution of high antimony anomaly, characteristics of deposit, origin of ore-forming materials (including Sb, C, Si, S, solution and associated elements), black dikes, the relation of deposit and mantle metasomatism fluid is expounded by means of geology and geophysics. Xikuangshan antimony deposit is proved to be a typical vein deposit formed by mantle metasomatism fluid. On the basis of this knowledge, the prospecting criteria of blind orebody of the deposit are given as follows: extensive structuer which indicating the activities of mantle metasomatism fluid, change of host rocks (especially exsisting shale barrier bed), silication and carbonization alteration.

文中对地幔交代流体组成、性质、活动特点及其成岩、成矿作用作了综述与探讨；从锡矿山区域壳幔结构和成矿背景、地质构造-岩浆活动史、高锑地球化学场结构分析、矿床特征、成矿物质(包括Sb、C、Si、S、流体及伴生元素)、与成矿有时空联系的暗色脉岩等方面入手，利用地质、地球物理、地球化学手段多方面论述了矿床与地幔交代流体活动的关系，论证了锡矿山超大型锑矿的地幔交代流体成因，并以此为基础提出盲矿体地质找矿标志：即指示地幔交代流体活动的构造，尤其是具有成矿元素和碱质异常、热液蚀变的断裂构造；有利的岩石物理化学性质；硅化、碳酸盐化围岩蚀变等。

And we should change the traditional, old development viewpoint and per sist in sustainabledevelopment.The big flood disaster of 1998,and the big snow and the Wenchuan great earthquake of last year is a hint for us to try our best for saving the earth,and it's the only outlet of human being to living on earth everlastingly.

改变传统发展观念，走可持续发展道路是我们的唯一选择。98年的洪灾、08年的冰雪灾害及5.12汶川大地震都提醒我们，拯救地球、保护环境是我们人类在这个地球上生存和繁衍的唯一出路。

Not that we'll be visiting any time soon, but stargazing astronomers at the Harvard-Smithsonian Center for Astrophysics have discovered a distant Earth-like planet that shares similar qualities with our own world, such as an abundance of water.

美国这不表示我们很快会前往探访，但哈佛─史密森天体物理中心负责观测天体的天文学家已经发现一个遥远的类地球行星，它跟地球具有若干类似特点，例如有大量的水。

This separates the magnetosphere's two main compartments: the crown, a round projection that stretches sunwards by about five times the diameter of the Earth, and the tail, which is shaped as its name suggests and runs far into space on the Earth's night time side.

这样也就把磁气圈两个主要部分就被分离开来：一为首部－圆形的凸出部分朝着太阳伸出5倍地球直径的距离；二是尾部－它的形状就像一条尾巴并在地球夜晚时的那一面伸向宇宙空间。

This hypothesis is more reasonable and convincible in solving the moon origin mystery, which puts forward that the moon is just the Umbilical Cord material between the sun and the earth and then it becomes the swang away satellite of the earth.

它通过论证证明：&月球&形成之前是太阳和地球之间的&脐带物质&，后成为地球的&甩离卫星&。

This paper is the fourth section of the serial articles, it's primary contents included: based on the basic theory of the continuous medium mechanics, we have given rotational dynamical equations of the solid inner core of the Earth, taken into account influence of the self\|gravitational potential, of the fluid pressure acting on the instantaneous surface of the SIC, and of the degree 2 tesseral component of the tidal generating potential on the rotation of SIC, and has presented their practical expression, in order of magnitude of O.

中国科学院国家天文台/云南天文台，昆明 650011；2。徐州师范大学物理学系，徐州 221116；3。中国科学院测量与地球物理研究所，武汉 430077摘要：本文是序列文章的第四篇，其内容包括：基于连续介质力学的基本理论，给出了固体外核自转的动力学方程，考虑了地球的自引力、液核对内核边界的压力和二阶外部引潮力位对SIC自转的影响，并在O的量级上给出了其实用的表达式。

Did you know that to get to the moon it takes more power for that rocket to lift off and break way from the earth's pull of gravity thatn all the power it needs to travel to the moon and back to earth-half a million miles!

你知道不知道，在火箭奔月时，它起航和脱离地球引力时所用的能量，远远大于它驶向月球途中和返回地球时所用的能量，这可是50万英里啊！

At that point, those lunar tidal bulges lined up with Earth and the rotation ceased slowing down: the Moon was tidally locked with Earth and that's why we see only one side of the Moon.

那一刻，那些月球潮汐隆起与地球成一线，其自转不再放缓：月球被地球潮锁，这就是为什么我们看到的只是月球的同一面。

In the experiment,with increasing pressure,titanite transforms from P2_1/a to A2/a at the pressure of 3.9 GPa and another phase transition A2/a→ occurs at the pressure of 10.9 GPa.

基于此认为榍石能在地球较深部位稳定存在，此外，本研究对探索地球深部T i和S i元素的地球化学行为也有一定帮助作用。

If we treat the earth like the city dump it becomes dirty and unlivable .

如果我们把地球当作城市垃圾一样对待，地球会变得肮脏不堪，无法生存。

But we don't care about Battlegrounds.

但我们并不在乎沙场中的显露。

Ah! don't mention it, the butcher's shop is a horror.

啊！不用提了。提到肉，真是糟透了。