单词	hydrazine
释义	hydrazine /ˈhʌɪdrəziːn / noun [mass noun] Chemistry A colourless volatile alkaline liquid with powerful reducing properties, used in chemical synthesis and in some kinds of rocket fuels. Chemical formula: N2H4. The concerns centre on the various types of fuel carried, such as hydrazine, a toxic colourless liquid with an ammonia-like odour, which can burn the skin.... The unusual microbes consume ammonia, producing hydrazine - better known as rocket fuel - in the process. They were fueled by hydrazine, and after the war it was available cheaply. Origin Late 19th century: from hydrogen + azo- + -ine4.
随便看	present presentability presentable presentableness presentably present arms presentation presentational presentationally presentation copy presentation day presentation department presentationism presentationist Presentation of Christ presentation plate presentation silver presentation software presentative presentatively present company excepted present-day presentedness presentee presenteeism

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