In this paper, the oxygenation of the jet aerator and its machanism are discussed. The results from tests on performance (in clean water) are provided.

本文分析了射流曝气器的充氧作用与理论，并进行清水充氧试验以测定其性能。

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Air-jet-spun yarns are clean, have good uniformity and even quality, but are less regular than ring-spun yarns.

喷气纺纱纺制的纱线光洁、条干均匀、质量稳定，但条干均匀度还赶不上环锭纱。

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In April last year, in a clean room at Nasa's Jet Propulsion Laboratory in Pasadena, I watched white-suited engineers gingerly assembling Curiosity.

BBC: New age of exploration in the hunt for extreme life