This paper discussed three methods of producting vinyl etherspreparation from acetylene,dehydrohalogenation and acetals.
论了乙烯基醚类化合物的三种备方法乙炔法、脱卤化氢法和缩醛热分解法。
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This has allowed titans like basf to churn out basic chemicals, such as acetylene and ammonia, which in turn fuelled the Mittelstand's manufacturing powerhouses; industry still makes up 27% of gdp, compared with about 17% in Britain and France.
这使得像巴斯夫这样的巨头能够大量生产氨等基础化学品,这反过来又为中型企业的制造强国提供了动力; 业仍占国内生产总值的 27%, 而英国法国的这一比例约为 17%。