1 DAir consists of a combination of nitrogen and oxygen【翻译】空气由氮和氧组成consists 由.组成2 CThe words of his old teacher left a lasting impression on his mind.He is still influenced by them【翻... 分析总结。 1dairconsistsofacombinationofnitrogenandoxygen翻译空气由氮和氧组成consists由结果...
英语翻译1 Air( )of a combination of nitrogen and oxygenA composes B comprises C forms D consists2 The words of his old teacher left a( )impression on his mind.He is still influenced by themA long B lively C lasting D liberal
英语翻译1Air()ofacombinationofnitrogenandoxygenAcomposesBcomprisesCformsDconsists2Thewordsofhisoldteacherlefta()impressiononhismind.HeisstillinfluencedbythemAlongBlivelyClastingDliberal 英语翻译 1Air()ofacombinationofnitrogenandoxygen AcomposesBcomprisesCformsDconsists 2Thewordsofhisoldteacherlefta()impression...
Combination triple duty compressor for prodn. of nitrogen@ and oxygen@ - has multiple shaft machine providing compression for feed air, first main stage, and coolant nitrogen streamsIn the low temp. sepn. of air the feed air (1) is compressed (2), purified (3) and finally cooled (5, ...
In this paper, we introduce two manufactural methods of nitrogen trifloride gas which are the electroanalysis and the direct synthesis. 介绍了三氟化氮气体的2种生产方法——直接化合法和电解法,并根据它们的研究发展方向,具体介绍了其基本原理、生产工艺以及相关的工艺设备。补充...
For this purpose, the selected structures do not have oxygen and nitrogen heteroatoms on the side chains. Furthermore, the decomposing of the intermolecular interactions gives us an insight into the important part of interaction energies and the contribution of effective forces on the interaction ...
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NH3molecule is polar, Because the difference in theelectronegativitybetween nitrogen and hydrogen atoms (N − H) is greater than 0.4 and less than 1.7, also the sum of the polar pair of the molecule does not equal zero. Hydroxy compounds, Rules for calculating the oxidation numbers ...
Type of polyamide is denoted by the alkane segments and the number of carbon atoms separating the nitrogen atoms. Naturally occurring proteins like collagen or silk may also be categorized in the polyamide category. The most common, synthetic polyamide is nylon, which is well known for its ...
the intensity of interaction between leachate and background groundwater was found to significantly control the isotopic fractionation features of hydrogen and carbon, and both the content of major contamination indicators (total dissolved solids, chemical oxygen demand, and ammoniacal nitrogen) and the ...