1·If it is true, the mantle rocks of the Moon and the Earth should be the same geochemically.
如果这是真的，月球和地球的地幔岩石从地球化学上来看应该是相同的。
2·The Moon's mean density is much lower than that of Earth but is about the same as that of Earth's mantle.
月球的平均密度比地球低得多，但与地球的地幔密度大致相同。
3·The formation of Earth's crust protected the inner layers of Earth from the high-energy particles in space, reducing the temperatures of the mantle and the core.
地壳的形成保护了地球的内层不受太空中高能粒子的影响，降低了地幔和地核的温度。
4·Here, extreme temperatures and pressures force lava up through the layers of the Earth in tubes criss-crossing the mantle like a sort of chaotic plumbing for lava.
在地幔的高温和强压作用下，火山岩有如涌入杂乱无序的管道，阡陌纵横于地幔，向上渗入地球各圈层。
5·Like the earth, the moon is in layers, with a crust on the outside and a deep mantle below.
如同地球一样，月球上有地层，表面是一层地壳，其下是很深的地幔。
6·Above the mantle, Earth has two kinds of crust.
在地幔之上有两种地壳。
7·Such meteorites look like igneous rocks from earth-hence the belief that Vesta has a mantle.
这些地球上的陨石看上去像火成岩- - -因此相信灶神星有个地幔。
8·Studies of thegravity field of the Earth indicate that its crust and mantle yieldwhen unusual weight is placed on them。
对地球引力的研究表明，在不寻常的负荷之下地壳和地幔会发生位移。
9·Four and a half billion years ago the Earth was about sixty percent formed, though it did have a differentiated core, crust and mantle.
45亿年前，地球大约只有现在百分之六十，尽管它确有能够区分的地核，地壳和地幔。
10·Such meteorites look like igneous rocks from earth-hence the belief that Vesta has a mantle.
这种陨石与地球上的火成岩相似—因此可以相信灶神星上有地幔存在。