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早期硫化

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Armed with this information and further analyses, Rumble, lead author Bekker, and colleagues propose the following scenario today in Science . Early in Earth's history, volcanic eruptions spewed massive amounts of sulfur dioxide into the atmosphere, where UV sunlight broke down the gas and created the odd sulfur isotope ratios. The sulfur descended with the rain and accumulated into sedimentary beds on the sea floor. Once there, superheated water from geothermal vents at various locations on the sea floor cooked the sulfur into sulfide. Finally, nickel-bearing magma welled up from Earth's mantle, combining with the sulfide to form nickel sulfide and encasing the compound inside volcanic rock called komatiite.

凭借这份资料和进一步的分析,朗布尔、研究论文的第一作者贝克及同事们今天在《科学》杂志上提出了如下的推测:在地球早期的历史上,火山爆发将大量的二氧化硫气体喷射到空中,太阳的紫外线将其分解,产生了奇特的硫同位素比值,这种硫随雨降下,积存于海底沉积层中;一旦到达海底,海底各处的地热出口所产生的温度过高的水把硫加热成硫化物;最终含有镍的岩浆从地幔中涌出,跟硫化物结合形成硫化镍,并将硫化镍包裹在一种叫做"科马提岩"的火山岩中。

But cadmium sulphide, an early thin-film technology that was pursued in the 1960s and 1970s in many research laboratories, did not live up to expectations.

但60和70年代,许多科研实验室早期的硫化镉薄膜技术试验结果都未尽人意。

The results show that in the prophase time of leaching process, the leaching rate, total iron concentration and bacteria cells increase rather quicker than those in the anaphase time of leaching, and the biological factors affect the leaching process when in the prophase time.

计算与实际结果表明,细菌最大生长比速率、细菌产出率、细菌饱和常数及溶液中 Fe 离子的浓度均对硫化矿的氧化浸出速率有明显影响,尤其在浸出早期影响较大。

推荐网络例句

I didn't watch TV last night, because it .

昨晚我没有看电视,因为电视机坏了。

Since this year, in a lot of villages of Beijing, TV of elevator liquid crystal was removed.

今年以来,在北京的很多小区里,电梯液晶电视被撤了下来。

I'm running my simile to an extreme.

我比喻得过头了。