1.
The largest part of takes Place because magnetic field lines are trapped in good electrical conductors such as the molten iron of the Earth's outer core.
发生磁场的再生是因为磁场曲线被限制在良好的电导体内，如地球外核的熔融铁。
2.
The earth have a core and a mantle around it.
地球的中心是地核，地核的周围是地幔。
3.
The earth has a core and a mantle around it.
地球的中心是地核, 地核的周围是地幔.
4.
A large volume of electrically conducting fluid, the iron-rich liquid outer core of the earth, is the first of these conditions.
第一要件，要有大量的导电流体─地球的外核为液态，且富含铁质。
5.
There exists relationship between the earth's inner core and the earth's rotation.
地球内核与地球自转有着密切的联系。
6.
the layer of the earth between the crust and the core.
地球中地壳与地核中间的一层。
7.
Although the geodynamo produces a very intense magnetic field, only about1 percent of the field's magnetic energy extends outside the core.
虽然地球发电机所产生的磁场非常强烈，但是磁场的能量只有约1%以延伸到地核外。
8.
In this patch, the magnetic flux is inward, toward the core, whereas most of the flux in the Southern Hemisphere is outward.
在这个斑块里，磁通量向内进入地核，然而南半球大部份磁通量是指向外的。
9.
The Sun is so much hotter than the Earth that matter can exist only as a gas, except at the core.
太阳温度比地球的温度高得太多，所以，那里的物质除了核心部分之外只能以气体的形式存在。
10.
The rocky crust of the earth.
岩石圈地球的岩石外表
11.
continuation fo the exterior gravity field
地球外部重力场的延拓
12.
extraterrestrial life, beings, forces
地球外的生命、 生物、 力量.
13.
encircle the globe
环绕地球(特指外交, 战略)
14.
The earth's crust is layered .
地球的外壳是分层的。
15.
Extending beyond the moon or the moon's orbit around Earth.
越过月球外侧的在月球以外的或超过月球围绕地球轨道的
16.
(in golf)stroke from the fairway to the green
（高尔夫球赛中）从外野击向球穴区草地.
17.
You have to throw the ball in the spot where the ball left the field of play
你必须在球出界地方掷界外球
18.
The earth is believed to have a liquid core.
人们相信地球有一个液态核。