释义 |
black ash短语¹⁴⁴⁹⁷²⁺² 基本英英例句例句 n.黑灰粗碱灰
Noun: vigorous spreading North American tree having dark brown heavy wood; leaves turn gold in autumn用作名词The explosion caused a huge black cloud of dust.火山的爆发造成了一大片黑灰云。 The routine of step search for auto- optimization control, and approach to determine highness of black ash pad by expert knowledge were studied. 研究自寻优控制的步进搜索法和采用专家知识和观测相结合的方法确定形状复杂的燃烧炉垫层高度。 dictall |