地壳的英文：
the Earth's crust

参考例句：

Electronic proBes into the crust of the earth.
勘察地壳的电子装置

However, the crust is almost four times thicker than the earth's crust.
然而，月球地壳几乎是地球地壳厚度的四倍。

Stratigraphy studies the sequence of the rocks in the earth's crust.
地层学研究地壳中岩石的层序。

The crust can be divided into two types, oceanic and continental.
地壳可以被分成两类:海洋性的和大陆性的。

The earth's crust is between 5 and 25 miles thick.
地壳有五至二十五英里厚。

Seismic sections show the response of the earth to seismic waves.
地震剖面是地壳对地震波的响应。

In general, the composition of lower crust is close to basalt and the composition of upper crust is similar to granite.
一般来说，下地壳的成分接近于玄武岩，而上地壳的物质成分与花岗岩相似。

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。

crustal attenuation
地壳变薄作用

tectonic stages of crustal development of China
中国地壳构造发展阶段

earth是什么意思：
n. 地球，世界，陆地，地面，土；兽穴
v. 把（电线）接地；埋入土中；躲入洞内

This is paradise on earth.
这是世上的极乐。

pit in the earth
地下的洞穴

to earth a body
埋葬一具尸体

The rabbit earthed.
兔子躲进了洞穴。

Is this plug earthed?
这个插头接地了吗?

crust是什么意思：
n. 面包皮；外壳；坚硬外皮；地壳
v. 盖以硬皮，结硬皮

There was salt crusted everywhere.
到处都结着盐皮。

The crust of the bread is burnt.
这块面包的外皮烤焦了。

The over crust of a pie is nice.
饼上面的一层酥皮真好吃。

Having, resembling, or being a crust.
硬皮的，外壳的有、象或成为硬皮或外壳的

The snow crusted the lake last night.
昨夜的雪使湖面结了冰。