英汉词典

1.Several new bis (1,2-dicarbonyl) compounds containing benzofuran or benzothiophene ring have been synthesized and identified by elemental analysis and Infra red spectroscopy.

本文首次合成了几种含苯并呋喃苯并噻吩环的新的芳香族四羰基化合物，并对它们进行了元素分析和红外光谱测定。

2.Several new bis (1,2-dicarbonyl) compounds containing benzofuran or benzothiophene ring have been synthesized and identified by elemental analysis and Infra red spectroscopy.

本文首次合成了几种含苯并呋喃苯并噻吩环的新的芳香族四羰基化合物，并对它们进行了元素分析和红外光谱测定。

3.The invention discloses a preparation method of a benzofuran ketones compound containing indoles substituent groups.

一种含吲哚类取代基的苯并呋喃酮类化合物的制造方法。

4.Furan, benzofuran, and vinyl acetate were classified as possibly carcinogenic to humans.

呋喃，苯并呋喃，醋酸乙烯酯被列为可能对人类致癌。