The explanation may be in Earth's mantle, the layer of rock underlying the tectonic plates and extending down over 1,800 miles to the outer edge of Earth's iron core.
解释可能是在地球的地幔中，这是在构造板块下面的岩石层，向下延伸超过1800英里到地球铁芯的外边缘。
This arrangement makes it possible to bubble the exhaust gas down through the outer compartment and then bubble it back up through the opaque middle.
这种安排使得它可以导引废气穿过外隔层，然后再导引其经由中间的不透明管道返回。
Then, solemnly, the group walked down an outdoor,semi-covered wooden corridor and up a short flight of steps, onto the platformof a large outer shrine.
接着，代表团神色严肃的走出屋，穿过半遮蔽式的木质走廊，借一小段楼梯来到了神殿外的广场。
Then, solemnly, the group walked down an outdoor, semi-covered wooden corridor and up a short flight of steps, onto the platformof a large outer shrine.
接着，代表团神色严肃的走出屋，穿过半遮蔽式的木质走廊，借一小段楼梯来到了神殿外的广场。
Dr Hess envisages a ray of light travelling down an optical fibre made from two materials: a core with a negative refractive index and an outer sheath with a positive one.
赫斯博士构想出一个画面，即一道光正穿越于一个由两种材料制作的光导纤维，一种是具有正折射指数的纤维核，另一种则是具有正折射指数的外围。
And when the camera's timer is set, the outer display counts down, showing '3, 2, 1' until the image is captured.
当相机设置了定时器时，前面的液晶屏会显示倒数计时，在照片拍摄完成之前显出“3、2、1”的字样。
Improve attention and focus by gently unrolling the outer area of your ears, from the very top down to the bottom.
从上到下温和的展开耳朵外部区域，改善注意力和焦点。重复三次。
A whisper-thin veil of molecules at the atmosphere's outer reaches bumps into and slows down orbiting objects.
大气层外极薄的微粒层会撞击进入减慢轨道物体的速度。
You may hear from people around you, you may receive much negativity from the TV and newspapers. Many will back down from doing something they want because of that outer atmosphere of discouragement.
这世界上有许多让人丧气的事情.你可能从身边的人听到过,你可能从电视和报纸上得到许多消极的消息.许多人由于受灰心丧气的情绪包围,从原本想做的事情当中退缩了.因此,一定要跳出常规,鼓励人们对自己和自己要做的事抱有信心.
She had to sit down and wait for a few minutes in the outer office.
她不得不在外面的办公室坐下，等几分钟。
If you could look down upon the solar system plane from outer space, you'd see that the sun, Earth and Jupiter form a 90-degree Angle today.
如果我们能从太阳系外观察，会发现今天的木星和太阳以地球为交点呈90度角。
A donor cell is fused to the egg by pulses of electricity, which break down the donor cell's outer membrane and allow the egg to envelope its new nucleus.
通过电流脉冲击破施主细胞的外层膜将其熔入卵内，使卵把这一新的细胞核裹住。
You can feel the brows pushing down on the inner LIDS and the cheeks pushing up on the outer LIDS.
你可以感觉到眉毛急切的挤压到眼角内侧，而脸颊迅速上升来压缩外眼皮。
North Carolina shut down ferry service between the Outer Banks and the mainland.
北卡罗莱纳州关闭渡轮大陆外银行之间的服务和。
The excess water delivered through the buttresses emerges at the apex or head stone and overflows down their outer surfaces to create a contrasting movement or feature.
过量水被交付通过支柱涌现在尖顶或头石头和溢出在他们的外表面下创造一个对比的运动或特点。
Exhale, right foot in and outer edge down.
呼气，右脚内收脚外缘落地。
She had to sit down and wit for a few minutes in the outer office.
她得在外面办公室坐下等几分钟。
She had to sit down and wit for a few minutes in the outer office.
她得在外面办公室坐下等几分钟。
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