地球外壳 meaning in English

crust of the earth

They analyzed their samples for lead, sodium, copper and found that some of the ratios were close to the values found for the earth's crust .
他们分析了样品中铅、钠、铜，发现某些比率接近于地球外壳中的值。
This is possible because the outer crust of the earth floats upon a semi - liquid layer
这是可能的因为地球外壳漂浮在半-液体层之上。
It has been suggested that approximately 12 , 000 years ago there was a displacement of the earth ' s crust
这显示大约在12 , 000年以前地球外壳有位移存在。
A rock is the solid material which comprises the outer shell of the earth and is an aggregate of one or more minerals or glasses
岩石是组成地球外壳的固体物质,也是由一种或多种矿物或琉璃质组成.这么翻对么？各位大虾？
Even without these man made sources of radiation , exposed to natural background radiation . the rocks and soil of the earth s crust contain variable amounts of natural radioactive elements such as uranium and thorium . this varies with geography - for example the hottest places in britain are cornwall and around aberdeen
就算排除人为辐射，人类会在天然环境中接触到本底辐射，如地球外壳的岩石和泥土含有份量不同的辐射元素如铀和钍，而份量视乎地理位置，如英国的康瓦尔和阿伯丁郡最为热点。