科学家在木卫二的冰面上发现了暗斑，这使他们猜测其形成过程是否与上述现象相同。
On Jupiter's moon Europa, scientists have found dark stains on the ice that have them wondering if they might be caused by a similar process.
这样做不仅可以在高空稀薄的空气中开发出更多的宜耕土地，同样亦可减少农产品的运输成本与长途运输所产生的二氧化碳排放量，还能有效降低生鲜农产品在物流过程中无法避免的衰老与腐烂现象。
As well as creating more farmable land out of thin air, this would slash the transport costs and carbon-dioxide emissions associated with moving food over long distances.
定性方法更加注重现象和行为与背景之间的关系，现象和行为的变化过程，现象和行为对于行为主体所具有的意义。
Qualitative approach emphasizes the relationships between behavior, phenomenon and their background, the process of their changes and the meaning that behaviors and phenomena have towards the actors.
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