Methane and propane are alkanes.甲烷和丙烷是烷烃。The general uses of alkanes may be divided into three categories.烷的一般用途可分为三个方面.The straight - chain alkanes exacerbate the problem of engine " knock ".直链烷烃使机器的 “ 爆震 ” 问题更加严重....
Alkanes are resistant to attack by oxidizing agents generally.烷烃一般对于氧化剂的作用是稳定的.The general uses of alkanes may be divided into three categories.烷的一般用途可分为三个方面.The straight - chain alkanes exacerbate the problem of engine ...
And the thrushes are in song there, fluting from the nest.还有百舌鸟在合唱, 从巢中如奏长笛.Her voice, small and fluting, stopped abruptly.她细小但却抑扬顿挫的声音戛然而止。Fluting andsing ing are heard all night.笙歌不夜....a fluting and melodic Scottish a...