Abstract: in rock pyrolysis when the content of base metals and base earth metals is relatively high ionization interference will frequently occur.

文摘：在岩石热解分析中当岩样碱金属和碱土金属离子含量较高时，经常发生离子化干扰的影响。

youdao

Help us build a base on the earth.

帮我们在地球上建立一个基地。

youdao

The single-celled photosynthetic organisms produce much of the oxygen on earth and are the base of the marine food chain.

地球上多数的氧气都是这些单细胞光合作用的生命制造的，他们还是海洋食物链的基础。

youdao

Listeners on Earth heard the countdown from Tranquility Base: "Three,two,one .

VOA: special.2009.07.15

As we approached the mountain, the hills and gulleys bore the appearance of having been created by some vast, fierce torrent rushing around the base of the peak, and tearing its way through the loose earth....

VOA: special.2010.04.26

That might help evolutionary biologists answer the question of why, for billions of years, and in every form of life on earth, only two base pairs are used.

ECONOMIST: A new kind of DNA

It is obvious why one of the biggest costs of a manned lunar base would be sending water to it from earth.

ECONOMIST: At least lunar gold-diggers will be able to take a shower

Earlier this month NASA unveiled its mission statement to revisit earth's satellite and create a permanent base there.

CNN: Mining the moon for a nuclear future