Terms containing approaches of estimation

Subject	English	Chinese
busin.	approaches of estimation	估计近似法
expl.	This paper describes an approach to the estimation of blast fragmentation size distributions down to 1 micron so that quantitative comparisons can be made of the likely generation of air-borne, inhalable and respirable dust when different types of rock are blasted	本文介绍将爆炸破碎粒度分布估计在 1 微米的方法、以便在各种岩石爆破时、对空气中有可能产生的可呼吸的浮尘作以定量比较