The hollow fine particle insulating riser is an advanced founding technique.

空心微珠保温冒口是一项先进的铸造工艺。

Experimental study on mineral process of fine particle gold ore was carried on.

本文主要对微细粒金矿石进行了选矿试验研究。

Experimental study on mineral processing of fine particle gold ore was carried out.

主要对微细粒金矿石进行了选矿试验研究。

The fine particle loss in the soil is an important issue of soil quality degradation.

土壤中细颗粒的流失是土壤质量恶化的重要表现之一。

The native gold is main gangue minerals and it is fine particle and micro-fine particle.

金矿物以自然金为主，可回收元素金为细粒金和微细粒金。