一、儲量級別要求和勘探手段問題 小型矿床一般是地方开採,投资額較少,开采方法一般都是由土到洋,开始时多用手工开采,所以就不需要象一般大型矿床一样求高級儲量作为设計的依据,而且也不需要花費太多的勘探費用和太長的勘探 I. Reserve level requirements and exploration methods Small-scale ore deposits are generally mined locally with a small amount of investment. The mining methods are generally from the earth to the ocean. At the beginning, they are mostly mined by hand, so there is no need for seeking high-level reserves like general large-scale deposits. As a basis for design, but also does not need to spend too much exploration costs and too long exploration