origin n. 1.开始,发端;根源,起源;起因,由来。 2.出身,来历;血统。 3.【数学】原点;起点;【解剖学】(筋、神经的)起端。 He is a Dane by origin. 他原籍丹麦。 He comes of Scottish origin. 他的祖先是苏格兰人。 country of origin 原产地。 of worker and peasant origin 工农出身的。
The measured co and co2 maximums at the remote location are considerably big and some even a little bigger than those at fire vicinity , which is consistent with the phenomenon that most of the fatalities in fires occur far away from the fire origin 实验测量到, co和co2迁移时浓度峰值在远离火源处仍然保持相当高的浓度甚至高于火源近处的浓度,这与火灾中很多遇难者死于远离火源位置的结果是一致的。
Results indicate that species concentration distribution varies horizontally : when at a distance from the fire origin they show a 2 - layer distribution , suitable for applying 2 layer zone model ; and in the vicinity of the fire origin they show a gradual distribution , requiring the field model or multi - layer model for evaluation 结果发现,烟气成分的分布沿着水平方向呈现不同的特点,在远离火源的位置呈上下两层分布,符合两层区域模型,而在离火源较近位置则递变分布,则须用场模型或者多层区域模型评估。