Describe

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Describe

Describe是一种MySQL(关係型资料库管理系统)的一种命令,用于描述指定数据表的结构。

基本介绍

  • 中文名:描述
  • 外文名:Describe
Describe the major parts of the Earth.
If you journeyed to the center of the Earth, What do you think you would see along the way?
Crust
The thinnest most outer layer of the Earth
It is composed of.
Oxygen
Irons
Potassium
Calcium
Sodium
Silicon
7Aluminum
Magnesium
9 Made up of 3 types of solid rocks.
10 Igneous: Hot liquid, rocks deep with in the Earth, that cools and hardens as it reaches the surface.
11 Sedimentary: When sediments (small places of rocks, sound, other materials) are pressed and cemented together by the weight of layers that build up over time.
Metamorphic
13 Igneous and sedimentary rocks are changed by hear pressure. Other chemicals
14 The Earth's crust forms the upper part of the lithosphere.
Lithosphere ranges from 50 to 100KM thick.
16 The crust depth extends 8 to 3KM.
What is the Earth is crust?
Where is the mantle located?
How far does it extends below the Earth is surface?
Earth crust: BE the hull layer that the Earth hard surface arrives an of the noodles of to constitute to from each kind of rock as follows, at big land average thickness 35 kames, under the ocean equally thick 5kms. Earth crust thickness the difference is very big. The earth crust constitutes to from the deposition hull, layer and the martial quality hull layer of the flower quality hull. The earth crust means the rigid outer shell of the Earth surface belong to the upper part of lithosphere. Constituting of earth crust can from the chemical element, mineral, rock three aspects to explain.
Describe Earth's major parts.
Mantle
1 The layer of the Earth directly above the core.
2 Extends to a depth of 2900KM below the Surface.
3 About 80% of the volume of the Earth and 68% of the plant's mass are in the mantle.
4 Composed mostly of:
Irons
Magnesium
Silicon
Oxygen
Density increases with depth because of the in the lower part of the mantle.
The temp and pressure increases as you go deeper into the Earth.
Temperance from 870/c =1,598/F in the lower mantle.
Both layers of the Earth's core are made up of iron and nickel.
Temperance of the inner core reaches 5,000/C =9,032/F.
Inner core is solid.
Depth of the inner core is about 5150KM.
Surrounding the inner core is the outer core.
Begins about 2900KM below the surface and about 2,250KM thick. Also made up of iron and nickel. Temperance from 2200/C to 5000/C.
描述地球的大部分。
披风
1地球的层数直接地上面核心。
2延伸到深度的2900KM在表面之下。
3大约80%地球的容量和68%植物的大量在披风。
4组成了主要:
氧气
密度增量与深度由于在披风的低部。
临时雇员和压力增量,你去深入地球。
节制从870/c =1,598/F在下地幔。
地核的两层数由铁和镍製成。
核心的节制到达5,000/C =9,032/F。
核心是坚实的。
核心的深度约为5150KM。
围拢核心是外面核心。
在表面之下开始大约2900KM和大约2,250KM厚实。
并且组成铁和镍。
节制从2200/C到5000/C。
Describe Earth's major parts.
Mantle
1 The layer of the Earth directly above the core.
2 Extends to a depth of 2900KM below the surface.
3 About 80% of the volume of the Earth and 68% of the plant's mass are in the mantle.
4 Composed mostly of:
Irons Magnesium Silicon Oxygen
Density increases with depth because of the in the lower part of the mantle.
The temp and pressure increases as you go deeper into the Earth.
Temp ranges from 870/c =1,598/F in the lower mantle.
Both layers
在mysql中,该命令是
描述指定数据表的结构
的命令。

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