“丙炔”造句
三氟
丙炔和全氟丁烯 -2 在这个区域也出现双重谱带.
Duplication of bands in this region is also shown by trifluoropropyne and perfluoro 2 - butene.
三氟
丙炔和全氟丁炔 -2 在这个区域也出现双重谱带.
Duplication of bands in this region is also shown by trifluoropropyne and perfluoro 2 - butyne.
三氟
丙炔和全氟丁烯 -2 在这个区域也出现双重谱带.
Duplication of bands in this region also shown by trifluoropropyne and perfluoro 2 - butene.