The theory of science includes tow different elements of knowledge. The"truth"based on human particular sensory organs and their extentions is the base and foundation of scienti…

科学理论包含两种不同性质的知识要素，其中基于人类特定感觉器官及其延伸的形而下的“真” ，是科学真理及其价值的基础和根据；

Inflatable “space habitats” were mentioned, and these might be used to build extentions to the space station on the cheap.

计划提到了充气“太空旅馆”，它可能被运用于以低廉的价格扩充空间站。

Extentions and modifications of the tools have greatly increased their usefulness and the range of their applications.

随着网络技术的不断发展和完善，更扩大了它们的用途和应用范围。

They are all "good extentions" and hereditary with closed LF sets.

它们都是“好的推广”且对闭集遗传。

So, Amadeus appears to be very aggressive in the U.S. GDS market these days, tossing around money to coax system switches and contract extentions to up its U.S. market share.

看起来，Amadeus在美国的GDS市场更加积极，他们投入了更多资金来帮助旅行社进行系统转换和延续合同，并提升了其在美国的市场份额。